Two gases are placed in a sealed flask and allowed to react. Which statement is true about the concentrations of the reactants and products when this closed system reaches dynamic equilibrium?

Answers

Answer 1

They will not necessarily be equal, but they will be constant.

What is dynamic equilibrium?

In reversible reactions, dynamic equilibrium refers to a state in which the rate of the forward reaction is equal to that of the backward reaction.

Consdier the reaction below: A + B --> C + D

If the reaction is in dynamic equilibrium, the rate of formation of A and B will be the same as the rate of formation of C and D. However, this does not mean that the concentrations of the reactants and the products will be the same.

Since the rate of forward and backward reactions are equal, it means that the concentration of each of the species will be constant.

Thus, the above reaction is applicable to that of two reacting gases placed in a sealed flask and allowed to reach a dynamic equilibrium.

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They will be equal and constant. They will be equal but continuously changing. They will not necessarily be equal, and they will be continuously changing. They will not necessarily be equal, but they will be constant.


Related Questions

What kind of intermolecular forces act between a water molecule and a chloride anion?

Answers

The intermolecular forces are present between the molecules and allow their interactions. The ion-dipole force is present between the water and the chloride ion.

What is ion-dipole intermolecular force?

Ion-dipole intermolecular forces are present when the molecules have an ion and a neutral molecule that can interlink through an electrostatic attraction. These forces are present in solutions.

The chloride ions have a negative charge, whereas the water molecule has a neutral charge. Water is a polar molecule that has a partial negative and positive charge that can bond with the anion (chloride ion).

Therefore, the water and the chloride ions have ion-dipole intermolecular forces.

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The temperature coefficient of resistivity for copper is 0. 0068°c-1. if a copper wire has a resistance of 104 ω at 20°c, what is its resistance 80°c?

Answers

Electrical resistivity is the measure of the material that can resist the electrical charge. The resistance of the copper wire at 80°C will be 146.43 Ω. Thus, option E is correct.

What is resistance?

Electrical resistance is defined as the opposing force that counteracts the electrical charge flow in the material. It is expressed in the terms of the ohms (Ω).

Resistance is calculated as,

R₈₀ = R₀(1 + αΔT)

Given,

Temperature coefficient of resistance (α) = 0.0068 °C⁻¹

ΔT = 60°C

Resistance of a wire (R₀) at 20° C = 104 Ω

Resistance of a wire (R₈₀) at 80°C =?

Substituting values above:

R₈₀ = (104 )[1 + (0.0068)(60)]

R₈₀ = 146.43 Ω

Therefore, option E. 146.43 Ω is the resistance of the copper wire at 80°C.

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Your question is incomplete, but most probably your full question was, The temperature coefficient of resistivity for copper is 0.0068 °C⁻¹. If a copper wire has a resistance of 104 Ω at 20°C, what is its resistance at 80°C?

112.64 Ω 98.56 Ω 84.48 Ω 70.40 Ω 146.43 Ω

Draw the major organic product(s) of the reaction of p-bromoaniline with ch3i (excess)

Answers

The major product is p-bromo N,N,N -trimethylaniliniumiodide when p-bromoaniline react with excess CH₃I.


What is Alkylation of p-bromoaniline ?

When p-bromoaniline react with methyl iodide it produces p-bromo N,N-dimethylaniline.

What happens when p-bromo N,N-dimethylaniline. reacts with excess methyl iodide ?

When  p-bromo N,N-dimethylaniline reacts with excess methyl iodide leading to the production of p-bromo N,N,N -trimethylaniliniumiodide.

Thus from the above conclusion we can say that The major product is p-bromo N,N,N -trimethylaniliniumiodide.  when p-bromoaniline react with excess CH₃I.

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Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N2 (g) + 3H2 (g) → 2NH3 (g) A 9.3-g sample of hydrogen requires ________ g of N2 for a complete reaction.

Answers

Answer:

43 g N₂

Explanation:

To find the mass of N₂ required, you need to (1) convert grams H₂ to moles H₂ (via molar mass), then (2) convert moles H₂ to moles N₂ (via mole-to-mole ratio from equation coefficients), and then (3) convert moles N₂ to grams N₂ (via molar mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 2 sig figs to match the amount of sig figs of the given value.

Molar Mass (H₂): 2(1.008 g/mol)

Molar Mass (H₂): 2.016 g/mol

Molar Mass (N₂): 2(14.009 g/mol)

Molar Mass (N₂): 28.018 g/mol

1 N₂(g) + 3 H₂(g) -----> 2 NH₃(g)

9.3 g H₂           1 mole             1 mole N₂             28.018 g
--------------  x  ----------------  x  --------------------  x  ------------------  =  43 g N₂
                        2.016 g            3 moles H₂            1 mole

Which term describes this molecular shape?

Answers

Answer:

B.) Trigonal planar

Explanation:

This molecule has 3 bonds and no lone pairs. The angles are all 120° and the bonds are within the same plane. These molecules have the molecular shape of trigonal planar.

What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the set up and answer with unit

Answers

The mass of CH₄ that is consumed is 10.598 g.

What is enthalpy?

The enthalpy of a system is defined as the sum of the internal energy of a system and the energy that is produced due to its pressure and volume.

It is given by

H = U+PV

The following reaction takes place during the combustion of CH₄

[tex]CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)[/tex]

Energy evolved during the combustion, E = 587.9 kJ

Enthalpy of combustion of methane, ∆H = 890.3 kJ

[tex]No of moles of CH_4 =\frac{energy evolved}{enthalpy of combustion}[/tex]

= 587.9 /890

Mass of CH₄  that is consumed = no of moles × molar mass of CH₄

  = 587.9 /890 × 16

   = 10.598 g

The mass of CH₄  which is consumed is 10.598 g

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Reaction rate is increased by an increase in kinetic energy
of the reacting particles when their
is _____________
increased


A . Collision theory
B . Surface Area
C . Temperature
D. Concentration

Answers

Answer:

Reaction rate is increased by an increase in kinetic energy

of the reacting particles when their

is _temperature_

increased

A . Collision theory

B . Surface Area

C . Temperature

D. Concentration

Which combination of properties would be expected to lead to the most viscous liquid?

Answers

The combination of properties would be expected to lead to the most viscous liquid include:

Low temperatureStrong intermolecular force

What is Viscosity?

This is defined as the resistance of a liquid to flow and is characterized by its sticky nature.

This is as a result of the strong intermolecular forces which holds the atoms together and low temperature keeps them in shape thereby making it the most appropriate c hoice.

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Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:
CH4 + NH3 + O2 à HCN + H2O
You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions:
· What is the balanced equation for this reaction?
· Which reagent is limiting? Explain why.
· How many grams of hydrogen cyanide will be formed? Show your work.

Answers

Answer:

-----> 2 CH₄ + 2 NH₃ + 3 O₂ -----> 2 HCN + 6 H₂O

-----> CH₄ = Whichever reactant produces the smaller amount of product is the limiting reagent. This is because the limiting reagent runs out before all of the other reactant is completely used. Because CH₄ produces the smaller amount of product, it is the limiting reagent.

-----> 13.5 grams HCN

Explanation:

Part 1:

An equation is balanced when there is an equal amount of each reactant on both sides of the reaction. These amounts can be modified by adding coefficients in front of the molecules.

The unbalanced equation:

CH₄ + NH₃ + O₂ -----> HCN + H₂O

Reactants: 1 carbon, 7 hydrogen, 1 nitrogen, 2 oxygen

Products: 1 carbon, 3 hydrogen, 1 nitrogen, 1 oxygen

The balanced equation:

2 CH₄ + 2 NH₃ + 3 O₂ -----> 2 HCN + 6 H₂O

Reactants: 2 carbon, 14 hydrogen, 2 nitrogen, 6 oxygen

Products: 2 carbon, 14 hydrogen, 2 nitrogen, 6 oxygen

Part 2:

You can determine the limiting reactant by converting each reactant mass (besides O₂) to a product mass. Whichever reactant produces the smaller amount of product is the limiting reagent. This is because the limiting reagent runs out before all of the other reactant is completely used.

Let's convert to HCN because Part 3 also wants to know how much HCN is produced. To find this amount, you need to (1) convert grams reactant to moles reactant (via their molar masses), then (2) convert moles reactant to moles HCN (via the mole-to-mole ratio from equation coefficients), and then (3) convert moles HCN to grams HCN (via its molar mass).

Molar Mass (CH₄): 12.011 g/mol + 4(1.008 g/mol)

Molar Mass (CH₄): 16.043 g/mol

Molar Mass (NH₃): 14.009 g/mol + 3(1.008 g/mol)

Molar Mass (NH₃): 17.033 g/mol

Molar Mass (HCN): 1.008 g/mol + 12.011 g/mol + 14.009 g/mol

Molar Mass (HCN): 27.028 g/mol

8 g CH₄           1 mole            2 moles HCN         27.028 g
--------------  x  ----------------  x  ----------------------  x  ----------------  =  13.5 g HCN
                       16.034 g          2 moles CH₄            1 mole

10 g NH₃           1 mole            2 moles HCN          27.028 g
---------------  x  ----------------  x  -----------------------  x  ----------------  =  15.9 g HCN
                         17.033 g          2 moles NH₃            1 mole

Because CH₄ produces the smaller amount of product, it is the limiting reagent. Therefore, the actual amount of HCN produced is 13.5 g.

Aluminum sulfate reacts with barium iodide to produce aluminum iodide and barium sulfate​

Answers

Al₂(SO₄)₃ + 3BaI₂ → 2AlI₃ + 3BaSO₄

What is the oxidation number for n in the compound nh3? (recall that h usually has an oxidation number of 1.)

Answers

The oxidation number for n in the compound [tex]NH_{3}[/tex] will be -3.

The charge an atom would have if all of its links to other atoms formed fully ionic could be known as the oxidation state, also known as the oxidation number. It describes how much an atom in a chemical molecule has been oxidized. The oxidation state can theoretically be positive, negative, and zero.

The oxidation number of N in  [tex]NH_{3}[/tex] will be calculated as:

Let the oxidation number of H is 1.

[tex]NH_{3}[/tex] = 0

x + 3(1) = 0

x = -3.

Therefore, the oxidation number for N in the compound [tex]NH_{3}[/tex] will be -3.

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The value of the rate constant at 302°c is 2. 45 × 10-4 l/mol s and at 508°c the rate constant is 0. 0965 l/mol s. the value of r is 8. 3145 j/k mol. Calculate the activation energy for this reaction

Answers

The activation energy for this reaction is - 55.5 kJ/mol

Calculation,

Given data,

First temperature [tex]T_{1}[/tex] =  302°C = 302+273 = 575 K

Second temperature [tex]T_{2}[/tex] =  508°C =  508+273 = 781 K

rate constant at  302°C = 2. 45 × [tex]10^{-4}[/tex] lit/mol s

rate constant at 508°C =  0. 0965 lit/mol s.

Value of universal gas constant = 8.3145 J/k mol.

Apply Arrhenius equation,

㏒[tex]K_{1} /K_{2}[/tex] = [tex]E_{a}/2.203R[/tex] [1/ 575 K - 1/781 K]

㏒2. 45×[tex]10^{-4}[/tex] lit/mol s/0.0965 lit/mol s = [tex]E_{a}[/tex] /2.303×8.3145 J/k mol[781-575/575K×781 K]

[tex]E_{a}[/tex] = - 55.5 kJ/mol

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(c) If both ovaries are removed, how will it affect the female reproductive systems?

Answers

If both ovaries are removed, then the individual is unable to produce ovules and experiences menopause.

What are ovaries?

The ovaries are two reproductive organs in women which act to generate germinal female cells known as ovules.

The absence of these organs (ovaries) leads to a stage known as menopause and the individual cannot produce sex hormones such as estrogen and progesterone.

In conclusion, if both ovaries are removed, then the individual is unable to produce ovules and experiences menopause.

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In the reaction hc2h3o2 h2o------>c2h3o2 - h3o , which substance is bronted -lowrey base?

Answers

In the reaction [tex]HC _{2} H_{3} O_{2} + H_{2}O[/tex]----->[tex]C _{2} H_{3} O_{2}^{-} + H_{3}O^{+}[/tex] , [tex]H_{2}O[/tex] substance is Bronsted -Lowery base.

According to Bronsted-Lowry an acid is a chemical species that is capable of yielding protons and a Bronsted-Lowry base is a chemical species capable of accepting protons .

The Bronsted -Lowery base is any species that can accepts a proton from another molecule . In short Bronsted -Lowery base is proton acceptor ( PA ) and  Bronsted -Lowery acid is proton donor ( PD ).

In  given reaction , water molecule accept proton from acid . Therfore , it is  Bronsted -Lowery base .

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What is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of the compound are provided?

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Mass percentages of the the elements in the compound is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of the compound are provided.

What is Empirical Formula ?

The Empirical formula is the simplest whole number ratio of atoms present in given compound.

What is Molecular formula of Compound ?

Molecular Formula = Empirical Formula × n

n =  [tex]\frac{\text{Molar Mass}}{\text{Empirical Formula weight}}[/tex]

Thus from the above conclusion we can say that Mass percentages of the the elements in the compound is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of the compound are provided.

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A substance moving from an area of high concentration to an area in which it has a low concentration is moving ______ the concentration gradient.

Answers

A substance moving from an area of high concentration to an area in which it has a low concentration is moving btween two concentration gradient.

What is diffusion?

Diffusion can simply be defined as the movement of substances from a region of a high concentration to a region of lower concentration.

It is also the movement of substances from a region of a strong solution to a region of weak solution.

So therefore, a substance moving from an area of high concentration to an area in which it has a low concentration is moving btween two concentration gradient.

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What set of reaction conditions would favor an sn2 reaction on 2-bromo-3-methylbutane?

Answers

The set of reaction conditions would favor a sn2 reaction on 2-bromo-3-methylbutane is a strong nucleophile in an aprotic solvent. The correct option is D.

What is Sn2 reactions?

It is a type of nucleophilic substitution reaction. This mechanism is common in organic chemistry. In these reactions, one bond is break and one bond is formed simultaneously.

The sn2 is a nucleophile reaction, and it is a strong nucleophile. This type of reaction, will occur in the compounds in which there is one alkyl halide group and a good leaving group.

In 2-bromo-3-methylbutane, there is a bromine and methyl group both, so the favor would be a strong nucleophile in an aprotic solvent.

Thus, the correct option is D) strong nucleophile in an aprotic solvent.

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The question is incomplete. Your complete question is given below:

A) weak nucleophile in a protic solvent

B) weak nucleophile in an aprotic solvent

C) strong nucleophile in a protic solvent

D) strong nucleophile in an aprotic solvent

E) none of the above

How many photons will be required to raise the temperature of 2. 1 gg of water by 1. 7 kk ?

Answers

The photon which is required to raise the temperature of 2.1 gm of water by 1.7 kk is 2.16 x [tex]10^{20} photons[/tex]

Given the following data:

Mass of water = [tex]2.1 gm[/tex]

Change in temperature = [tex]1.7 Kelvin[/tex]

Wavelength of infrared =  [tex]2.9[/tex] х [tex]10^{-4} cm[/tex]

Specific heat capacity of water = 4.18 J/g°K.

Conversion:

100 cm = 1 m

[tex]2.9 X 10^{-4} cm = 2.9 X 10^{-6}[/tex]

To find the amount of photons required to raise the temperature of 2.1 g of water:

First of all, we would determine the quantity of energy required to raise the temperature of water:

Mathematically, quantity of energy is given by the formula;

[tex]Q = mc[/tex]θ

Where:

Q represents the quantity of energy.

m represents the mass of an object.

c represents the specific heat capacity.

∅ represents the change in temperature.

Substituting the given parameters into the formula, we have;

[tex]Q = 2.1(4.18)(1.7)\\\\Q = 14.92 Joules[/tex]

Mathematically, the Planck-Einstein relation is given by the formula:

[tex]E = hf[/tex]

Where:

h is Planck constant.

f is photon frequency.

To find the photon frequency, we would use this formula:

[tex]Photon frequency = \frac{speed}{wavelength} \\\\Photon frequency = \frac{3(10^{8} )}{2.9(10^{-6} )}\\ \\Photon frequency = \frac{300000000}{0.0000029}\\ \\Photon frequency = 1.04 X 10^{14} Hz[/tex]

Applying Planck-Einstein's relation, we would determine the energy required by each of photon:

[tex]E = 6.626[/tex] х [tex]10^{-34}[/tex] х [tex]1.04[/tex] х [tex]10^{14}[/tex]

[tex]E= 6.89[/tex] х [tex]10^{-20} Joules[/tex]

Now, we can calculate the amount of photons required to raise the temperature of 2.1 g of water by using this expression:

[tex]Number of photons = \frac{Q}{E} \\\\Number of photons = \frac{14.92}{6.89(10^{-20} )}\\ \\Number of photons = 2.16 X 10^{20} photons[/tex]

Disclaimer: Given Question is incomplete, please find the correct question:

Water is exposed to infrared radiation of wavelength 2.9x10-4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 2.1 g of water by 1.7 K? Express your answer using two significant figures.

Thus the concluded that number of photon is 2.16 x [tex]10^{20}[/tex] photons.

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A. Would sucrase be classified as a oxidoreductase, a transferase, a lysase, an isomerase, a hydrolase, or a ligase enzyme? explain your choice. B. Could sucrase be used to break down another disaccharide, such as lactose? explain your reasoning.

Answers

Sucrose, a disaccharide (consisting of two monosaccharides), is table sugar.

A digestive enzyme called sucrase catalyses the breakdown of sucrose into its component sugars, fructose and glucose. One type, sucrase-isomaltase, is secreted at the brush boundary of the small intestine. Invertase, a form of the sucrase enzyme that is more frequently found in plants, also hydrolyzes sucrose but does it in a different way.

What does sucrase break down into ?

Maltose is converted to glucose by maltase. Succrase and lactase, respectively, break down other disaccharides like sucrose and lactose. Sucrase and lactase are enzymes that break down sucrose (also known as "table sugar") and lactose (sometimes known as "milk sugar"), respectively, into glucose and fructose.

Both the breakdown of maltose into glucose and the breakdown of sucrose into glucose and fructose are carried out by the enzyme's sucrase subunit.

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What instrument is used for measuring the heat energy absorbed or released in a chemical reaction?

Answers

Answer is calorimeter

A calorimeter is a device used to measure the amount of heat involved in a chemical or physical process.

Write out a balanced reaction equation for the reaction of hydronium ions (H3O+) with calcium carbonate

Answers

Balanced chemical equation for reaction of hydronium ions with calcium carbonate will be as follows:

2H3O+ (aq) + CaCO3 (s) => Ca2+ (s) + 3H2O (l) + CO2 (g)

In this balanced chemical equation, acidic aqueous solution of hydronium ion (H3O+) reacts with calcium carbonate salt (CaCO3) resulting in the formation of calcium cation (Ca2+) an alkali, that results in neutralization of excessive acid. It also forms liquid water (H2O) along with liberation of carbon dioxide gas (CO2).  All acids stronger than hydrogen carbonate, provide their calcium salts dissolved in water yielding carbon dioxide, because a bare hydrogen ion has no chance of surviving in water.

To balance this chemical equation, 2 molecules of hydronium ions react with 1 molecule of calcium carbonate resulting  in formation of 1 molecule of calcium cation, 3 molecules of water and 1 molecule of carbon dioxide. The reaction proceeds at room temperature.

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The angle between the hydrogen atoms in water (h2o) is slightly less than expected for a tetrahedral shape. this is because of the:_______.

Answers

The angle between the hydrogen atoms in water (h2o) is slightly less than expected for a tetrahedral shape. this is because of the extra electron repulsion from the lone pairs.

A water molecule consists of two hydrogen atoms and one oxygen atom. The three atoms make an angle; the H-O-H angle is approximately 104.5 degrees. The centre of each hydrogen atom is approximately 0.0957 nm from the centre of the oxygen atom.

In water, each hydrogen nucleus is covalently bound to the central oxygen atom by a pair of electrons that are shared between them. In H2O, only two of the six outer-shell electrons of oxygen are used for this purpose, leaving four electrons which are organized into two non-bonding pairs. The four electron pairs surrounding the oxygen tend to arrange themselves as far from each other as possible in order to minimize repulsions between these clouds of negative charge. This would ordinarily result in a tetrahedral geometry in which the angle between electron pairs (and therefore the H-O-H bond angle) is 109.5°. However, because the two non-bonding pairs remain closer to the oxygen atom, these exert a stronger repulsion against the two covalent bonding pairs, effectively pushing the two hydrogen atoms closer together. The result is a distorted tetrahedral arrangement in which the H—O—H angle is 104.5°.

About tetrahedral shape :

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces.

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The number of π molecular orbitals in a molecule is always equal to the number of ________. a. p orbitals used to construct the π bonds b. hydrogen atoms in the molecule c. π bonds

Answers

The number of π molecular orbitals in a molecule is always equal to the number of p orbitals used to construct the π bonds.

An electron's position and wave-like behavior within a molecule are described by a mathematical function called a molecular orbital. Chemical, as well as physical properties like the probability of locating an electron in a particular area, can be determined using this function.

A molecular orbital would be created when two atomic orbitals cross one other along the internuclear axis. A molecular orbital is created when two atomic orbitals cross each other sideways.

Therefore, the number of π molecular orbitals in a molecule is always equal to the number of p orbitals used to construct the π bonds.

Hence, the correct answer will be option (a).

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During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. theoretically, the expected amount should have been 105 grams. what was the actual yield from this reaction? caco3 hcl → cacl2 co2 h2o 105.3 grams 101.1 grams 95.6 grams 86.5 grams

Answers

The actual  theoretically yield from this reaction is 86.5 grams.

What is theoretically yield?

Theoretical yield is the quantity of a product obtained from the complete conversion of the limiting reactant in a chemical reaction. It is the amount of product resulting from a perfect (theoretical) chemical reaction, and thus not the same as the amount you'll actually get from a reaction in the lab.

The percentage yield = (actual yield/theoretical yield) * 100.

To calculate the theoretical yield from the balanced reaction:

             CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O,

It is clear that 1 mole of CaCO₃ reacts with 2 mole of HCl to produce 1 mole of CaCl₂, 1 mole of CO₂, and 1 mole H₂O.

to calculate the no. of moles of 95.0 g CaCO₃

n = mass/molar mass = (95.0 g)/(100.0869 g/mole) = 0.95 mol.

Using cross multiplication:

1 mole of CaCO₃ produce  → 1 mole of CaCl₂, from stichiometry.

∴ 0.95 mole of CaCO₃ produce → 0.95 mole of CaCl₂.

∴ The mass of CaCl₂ (theoretical yield) = (no. of moles) * (molar mass)                         ⇒(0.95 mole)*(110.98  g/mole) = 105.34 g.

The percentage yield = (actual yield/theoretical yield)*100.

The percentage yield = 82.15%, theoretical yield = 105.34 g.

The actual yield of CaCl₂ = (The percentage yield)(theoretical yield)/100

                                 = (82.15%)(105.34 g)/100 = 86.53 g ≅ 86.5 g.

So, the actual  theoretically yield from this reaction is 86.5 grams.

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Drag each tile to the correct location. classify the chemical equations as being balanced or not balanced. 2co 2no → 2co2 n2 6co2 6h2o → c6h12o6 o2 h2co3 → h2o co2 2cu o2 → cuo

Answers

A. 2CO + 2NO → 2CO2 + N2 is a balanced equation as the number of carbon, oxygen, and nitrogen atoms are same on both sides.

B. 6CO2 + 6H2O → C6H12O6 + O2 is an imbalanced equation as oxygen atoms are not balanced here.

C. H2CO3 → H2O + CO2 is a balanced equation as same number of hydrogen, carbon, and oxygen are present on both sides.

D. 2Cu + O2 → CuO is an imbalanced equation as both copper and oxygen are imbalanced here.

What is Chemical equation ?

A chemical equation is a way to depict a chemical reaction using the symbols and formulas of the components involved. For instance, when zinc metal and diluted sulfuric acid combine, zinc sulphate and hydrogen gas are produced.

Balanced and imbalanced chemical equation -

an equation in chemistry where the number of each sort of atom is equal on both sides. Subscripts are a component of the chemical formulae for the reactants and products that show how many atoms of the previous element there are in each.

The chemical equation is referred to as being imbalanced if the number of atoms of each element present in the reactants and the number of atoms of each element present in the product are not equal.

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Answer: A. 2CO + 2NO → 2CO2 + N2 is a balanced equation as the number of carbon, oxygen, and nitrogen atoms are same on both sides.

B. 6CO2 + 6H2O → C6H12O6 + O2 is an imbalanced equation as oxygen atoms are not balanced here.

C. H2CO3 → H2O + CO2 is a balanced equation as same number of hydrogen, carbon, and oxygen are present on both sides.

D. 2Cu + O2 → CuO is an imbalanced equation as both copper and oxygen are imbalanced here.

What is Chemical equation ?

A chemical equation is a way to depict a chemical reaction using the symbols and formulas of the components involved. For instance, when zinc metal and diluted sulfuric acid combine, zinc sulphate and hydrogen gas are produced.

Balanced and imbalanced chemical equation -

an equation in chemistry where the number of each sort of atom is equal on both sides. Subscripts are a component of the chemical formulae for the reactants and products that show how many atoms of the previous element there are in each.

The chemical equation is referred to as being imbalanced if the number of atoms of each element present in the reactants and the number of atoms of each element present in the product are not equal.

Explanation:

The malonic ester synthesis is a method for preparing carboxylic acids from alkyl halides. For each of the carboxylic acid products, draw the structure of the alkyl bromide that would be used in its synthesis.

Answers

Haloalkanes are another name for alkyl halides. Alkyl halides are substances in which halogen atoms have taken the place of one or more hydrogen atoms in an alkane (fluorine, chlorine, bromine, or iodine).

What is the structural property of alkyl bromide?Alkyl halides are halogen-substituted alkanes in which a halogen atom, such as fluorine, chlorine, bromine, or iodine, is used in place of one or more hydrogen atoms in an alkane. An alkyl halide has a link between the carbon atom and the halogen atom, which is sp3-hybridized and has a tetrahedral form.Vinyl halides are substances, as opposed to alkyl halides, in which a halogen atom is attached to a sp2-hybridized carbon atom of a carbon-carbon double bond (C=C). In contrast, aryl halides are substances in which a halogen atom is joined to an aromatic ring's sp2-hybridized carbon atom.Alkyl halides are further divided into primary, secondary, and tertiary alkyl halides based on the level of substitution at the carbon atom holding the halogen. The term "- carbon" refers to the carbon that is bound to a halogen atom. The term "-carbon" refers to the carbon atom that is connected to it. Greek alphabets are then used to represent the neighboring carbons (, and so on).

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What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the set up and answer with unit. ch4 molar mass = 16. 05 g/mol

Answers

Mass of CH₄ is 10.591 g.

The molar mass is a crucial characteristic of the material that is independent of sample size. The coherent unit of molar mass in the International System of Units (SI) is kg/mol. However, molar masses are usually generally given in g/mol due to historical considerations.

A chemical compound's molar mass is calculated by dividing its mass by the number of moles of the substance that make up the sample.

Δg = 587.9 KJ

CH₄ Molar mass = 16.05 g/mol

mol CH₄ = Δg / ΔH°

              = 587.9 / 890.3 KJ/ mol

              = 0.6603 mol CH₄

Mass CH₄ = 0.6603 × 16.05 g/mol

                = 10.591 g

Therefore, the mass of  CH₄ is 10.591 g.

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What is the formula mass of copper(ii) fluoride?
a. 146.10
b. 165.10
c. 101.55
d. 90.00
e. none of the above

Answers

The correct option is (c) 101.55.

Copper fluoride (CuF) -

Copper(II) Fluoride Dihydrate is slightly soluble in water and has uses in ceramics and in fluxes used for brazing and soldering.Iodide ions are strong reducing agents. Therefore, Copper (II) Iodide reduces to insoluble copper (I) iodide. Thus making CuI2, CuI. CuI is not stable, so it doesn't exist in solution.Copper(II) fluoride is an inorganic compound with the chemical formula CuF2. It is a white crystalline, hygroscopic solid with a rutile-type crystal structure, similar to other fluorides of chemical formulae MF2 (where M is a metal).

What is copper fluoride used for?

Copper fluoride is used in ceramics and in fluxes for brazing and soldering. It is only marginally soluble in water. Fluoride compounds have a wide range of uses in modern science and technology, from etching and oil refining to synthetic organic chemistry and the production of medications.

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Serotonin acts as a weak base and has a pkb = 3. 84. what is the ph of a solution made by adding 0. 025 m of serotonin in water?

Answers

Serotonin acts as a weak base and has a pkb = 3. 84. The ph of a solution made by adding 0. 025 m of serotonin in water is 2.4.

A molecule called serotonin delivers information between nerve cells in the brain and other parts of the body. Body processes like mood, sleep, digestion, nausea, wound healing, bone health, blood clotting, and sexual desire are all significantly influenced by serotonin.

Tryptophan, an important amino acid, is used to make serotonin. This amino acid, which must be ingested by food, is frequently present in foods including nuts, cheese, and red meat. Lower amounts of serotonin can result from tryptophan insufficiency. Anxiety or depression may come from this, among other mood disorders. The chemical serotonin is essential for elevating mood and lowering anxiety.

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More strong base is added until the equivalence point is reached. what is the ph of this solution at the equivalence point if the total volume is 57. 0 mlml ?

Answers

A more strong base is added until the equivalence point is reached. The ph of this solution at the equivalence point if the total volume is 57. 0 mill is 9.8

The potential of Hydrogen is what pH is formally known as. The negative logarithm of the concentration of H+ ions is known as pH. Thus, the definition of pH as the amount of hydrogen is provided. The hydrogen ion concentration in a solution is described by the pH scale, which also serves as a gauge for the solution's acidity or basicity.

The pH scale determines how acidic or basic water is. The range is 0 to 14, with 7 representing neutrality. Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7. In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.

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