The theoretical yield of H2S will be 8 moles.
Al2S3 is in excess, thus the quantity of H2O (limiting reagent) will be used for calculation.
Al2S3(s) + 6H2O(l) --> 2Al(OH)3(s) + 3H2S(g)
……………..6 moles…………………………3 moles
……………..16 moles………………………..x
x= H2S (theoretical yield)
A mole is a very essential unit of size that chemists use. A mole of something way you have got 602,214,076,000,000,000,000,000 of that aspect, like how having a dozen eggs means you've got twelve eggs. Chemists have to measure the use of moles for very small such things as atoms, molecules, or other particles.
The mole is the amount of substance of a gadget that incorporates as many elementary entities as there are atoms in zero.
There are four commonplace styles of moles: congenital moles, dysplastic nevi, obtained nevi, and spitz nevi. under are the differences among each. The quantity of moles method is the number of moles = Mass of substance / Mass of 1 mole. Variety of moles = 95 / 86.94.
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What is the effect of Hamlet's use of simile in this passage?.
The usage of Hamlet's similes in the passage is used to elucidate the greatness by comparing humans with divine things.
Hamlet is full of similes and metaphors that are used to convey the inner turmoil of the titular character. One of the most famous examples is when Hamlet compares his father's death to a serpent: "O, my offense is rank, it smells to heaven; It hath the primal eldest curse upon 't, A brother's murder. Pray can I not, Though the inclination is as sharp as will." This simile emphasizes the gravity of the crime that Hamlet's father murdered and compares it to a foul odor that cannot be escaped.
Other similes and metaphors in the play include comparing Claudius to a "mildewed ear" and his situation to a "sea of troubles."
By using these comparisons, Hamlet can illustrate the depth of his despair and the enormity of his task of avenging his father's death.
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determine the rate law and calculate the rate constant for the following reaction from the rate. s2o82-
Equations known as rate law link the consumption of the reactants, an observable, to the kinetics of a reaction. The rate is influenced by the reactant concentrations, their thermodynamics, and the precise mechanism of the reaction.
How much is Ki the rate constant?The second-order rate constant kinact/KI (also known as the covalent efficiency constant) explains both the affinity of the initial reversible encounter complex and the maximum rate of covalent bond formation. In the context of enzyme-substrate kinetics, it is comparable to the enzyme specificity constant kcat/KM.
What is the rate constant k formula?A rate law illustrates how a chemical reaction's rate is influenced by the reactant's concentration. The rate rule for a reaction like aA products typically has the form rate = k[A]n.
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g which of these elements is not a constituent of carbohydrates? i.all of the choices are constituents of carbohydrates. ii.oxygen iii.nitrogen iv.carbon v.hydrogen
The breakdown of food provides energy for the organism's body. When carbohydrates are converted into simpler sugars like glucose, they become a more complicated kind of food nutrient.
What purposes do carbs serve?
Carbohydrates, also referred to as "carbs," are necessary at every stage of life. They serve as the body's primary energy source and the brain's preferred energy source. Carbohydrates are transformed by the body into glucose, a type of sugar. Glucose is used as fuel by the organs, tissues, and nerves.
What kinds of carbs are there?
Sweeteners (including such sugar, glucose, and lac) and starches, that are present in foods like starchy veggies, grains, rice, bread, and cereals, are the two main types of carbs. The body shatters
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Aqueous ammonium chromate reacts with aqueous lead(II) nitrate in a double-displacement reaction. Write a balanced equation to describe this reaction. Include states of matter in your answer. Click in the answer box to open the symbol palette. Note: The example shown in the figure is not the same as described in the question.
AP 1(image)
Equation = 2NH[tex]{4}[/tex] CL(aq) + Pb (NO[tex]_{3}[/tex])² (aq) ⇒ 2NH[tex]_{4}[/tex]NO[tex]_{3}[/tex](aq) + PbCl[tex]_{2}[/tex] (s)
What is meant by double displacement reaction ?A kind of reaction called a double displacement reaction involves the exchange of ions between two reactants to create two new molecules. Precipitates are frequently formed as a byproduct of double displacement processes.The formula for double displacement reactions is AB + CD AD + CB.Chemical reactions known as double displacement reactions occur when the reactant ions move around to create new products.Precipitate production often happens as a result of a double displacement process.Covalent or ionic chemical bonds may be present between the reactants.Double replacement, salt metathesis, and double decomposition are other names for a double displacement process.Covalent or ionic chemical bonds may be present between the reactants.Learn more about double displacement reaction refer to :
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paringly Soluble Salt (A) Fill in the table Step Procedure Mixing 0.1 M Na.co, and 0.1 M CaCl2 Observation made Percipi Eate (B) Write the balanced chemical reaction taking place when Naco, is mixed with CaCl, (this is a double replacement reaction). Include all phases and write correct product formulas. (C) Write the net ionic equation taking place for the reaction in (B). (This (4) is your equilibrium reaction) (4) (D) Fill in the table Step Procedure Observation Adding 6 M HCI destroyed the percipitate, The added HCl (the stress) reacts according to the following equations: 2H+ (aq) + CO, HCO, (aq) → H20 (1) + CO:8) (E) Look at the net ionic reaction (your equilibrium reaction (4) above). Which ion from (4) did * react with? (F) Why did the calcium carbonate decompose when the HCI was added? (G) Explain how Le Chatelier's principle was demonstrated in this experiment. How did the addition of H" (aq) stress the equilibrium reaction and howvdid the reaction shifted to compensate for the stress.
Na2CO3 (aq) + CaCl2(aq) → CaCO3 (s) + 2 NaCl (aq) is balanced chemical reaction
"Balancing by inspection," often known as trial and error, is the most fundamental and widely used technique for balancing chemical equations. Several strategies can be employed to lessen the number of tries and errors necessary to generate an equation that is ultimately suitably balanced. The conservation of matter criterion must be followed in order for a chemical equation to be considered balanced. There are two different kinds of numbers that are employed in chemical equations. In the chemical formulations of the reactants and products, subscripts are employed. Additionally, coefficients are used to show how many molecules of a certain substance are used up or produced before chemical compositions.
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how many moles of ethylene glycol (c2h6o2) are needed to mix with 5.00 kg of water to prepare a 3.50 m solution?
Ethylene glycol has a total molecular mass of 0.068
Is ethanol glycol toxic to humans?Ethylene glycol is a nerve (CNS) depressant that has immediate effects similar to those of ethanol. The first few hours after exposure are when all these CNS actions are also most apparent. If detected or mistreated, ethanol use can cause serious or fatal poisoning.
Ethylene glycol is present in food, right?Ethyl acetate is not used in food products since it is very dangerous to people. Summary Propylene glycol, a synthetic liquid that has no taste, smell, or flavor, belongs to the same natural compound as alcohol. It shouldn't be confused with the dangerous substance ethylene glycol.
Briefing:
Molar mass ethylene glycol - (12*2 + 1*6 + 16*2) = 62g/mol
so, in 20g we have 20/62 = 0.32 mol
Mole fraction of ethylene glycol = No of moles of ethylene glycol/ Total number of moles.
= 0.068
Therefore , moles of ethylene glycol is 0.068 .
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What type of reaction is NH4NO3 → 2H2O N2O?.
NH4NO3 -----> 2H2O + NO2 is a Redox Reaction . It undergoes redox reaction to give H2O and NO2 .
According to electronic concept every redox reaction consists of two steps known as half reactions.one is Oxidation reaction . Half reactions that involve loss of electrons are called oxidation reactions. and the other one is Reduction reaction . Half reactions that involve gain of electrons are called reduction reactions. Redox is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, likewise, reduction is the gain of electrons or a decrease in the oxidation state. Basically oxidation - reduction occurring together is a Redox reaction.
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propose a mechanism (curved arrows) for the following sn1 reaction. based on the mechanism, do you think that the products will be formed with absolute stereochemistry or as a racemic mixture?
In SN1 reaction, the products will be formed as a racemic mixture.
What is racemic mixture?Racemic mixture also called racemate, a mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another.
What is SN1 reaction?SN1 reaction corresponds to unimolecular nucleophilic substitution reaction. The order of reaction is one. The hydrolysis of tert-butyl bromide with aqueous NaOH solution is an example of SN1 reaction.
Why in SN1 reaction products will be formed as a racemic mixture?The carbocation and its substituents are all in the same plane, meaning that the nucleophile can attack from either side. As a result, both enantiomers are formed in an the SN1 reaction, leading to a racemic mixture of both enantiomers.
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Which best describes the quaternary structure of a protein?.
Hemoglobin describes the quaternary structure of a protein better.
The complete stable structure of proteins has 4 different levels which are the primary structure, secondary structure, tertiary structure, and quaternary structure. The primary structure is the specific amino acid sequence that is held together by the peptide bonds. The secondary structure is the repeated arrangement of the amino acid backbone. The tertiary structure is the three-dimensional arrangement of the protein structure. Lastly, the quaternary structure is generally the association of different polypeptide bonds in a more complex way.
Hemoglobin has a quaternary structure. It consists of two pairs of different proteins, that are designated the α and β chains. There are 141 and 146 amino acids in the α and β chains of hemoglobin, respectively.
Hence we can say that Hemoglobin describes the quaternary structure of a protein better.
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n a 2 s ( a q ) na2s(aq) and h g ( n o 3 ) 2 ( a q ) hg(no3)2(aq) are mixed. the illustration below represents the system after there are no longer any observable changes. created for albert. all rights reserved. which of the following statements most accurately describes the reaction?
Sodium sulfide is created when the elements sodium (Na) and sulfur (S) combine. It is a combination reaction, and the balanced equation is 2Na(s)+S(s)fuseNa2S.
If the resulting compound is water-insoluble, a precipitate will form. For instance, a solution of magnesium bromide and silver nitrate (AgNO3) In these reactions, two compounds exchange ions to create two new compounds. As an illustration, consider Na2S + 2HCL + 2NaCl + H2S.
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A molecule has two atoms that are bonded to the central atom and one lone pair of electrons around this central atom. What is the shape of the molecule?.
The lone pair on the center atom bends, pushing the other atoms away, and the triagonal planar configuration of the lone pair and two other atoms is the most stable.
Lone pairs, also known as unshared pairs or non-bonding pairs, are valence electron pairs in chemistry that are not shared with another atom in a covalent bond. Atoms outermost electron shell is where lone pairs are located. By employing a Lewis structure, they may be located. If two electrons are paired but aren't utilised in chemical bonding, they are consequently referred to as lone pairs. So, the amount of valence electrons around an atom is equal to the sum of the number of electrons in lone pairs and the number of electrons in bonds.
In order to describe the geometries of molecules, the valence shell electron pair repulsion theory (VSEPR theory) uses the idea of a lone pair. In the chemistry, they are also mentioned.
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Which has the highest boiling point?
(A) n–butane C4H10
(B) n–heptane C7H16
(C) n–hexane C6H14
(D) n–pentane C5H12
The boiling point of n-heptane is 98.42°C. And it has 7 Carbon atoms. Therefore, option (B) is correct. It has the highest boiling point among all the given compound.
When carbon chain gets longer, there are more and more electrons in a molecule. Which means that there are more stronger intermolecular forces between the molecules as alkali chain increases. As a result, it will take more energy to break these forces. Therefore, the melting or boiling points increase as we go from lower to higher straight alkali chain. Thus the chain with more number of carbon atom will have highest boiling point. n-heptane will be the answer.
The boiling point of n-butane is -1°C.
The boiling point of n-pentane is 36.1 °C.
The boiling point of n-hexane is 69°C.
The boiling point of n-heptane is 98.42°C.
So, the boiling point of n-heptane is highest among all the given compound. It has 7 Carbon atoms.
Hence, option (B) is correct.
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calculate the ph at of a solution of potassium cyanide . note that hydrocyanic acid is a weak acid with a of . round your answer to decimal place.
The pH at 25 °C of a 0.19 M solution of potassium cyanide . note that hydrocyanic acid is a weak acid with pka of 9.21 is 11.2.
The reaction is given as :
KCN ---> K⁺ + CN⁻
CN⁻ + H₂O ⇄ HCN + OH⁻
KCN = HCN = 0.19 M
pka(HCN) = 9.21
ka HCN = 6.16 × 10⁻¹⁰
kb CN⁻ = 10⁻¹⁴ - 6.16 × 10⁻¹⁰
= 1.62 × 10⁻⁵
[HCN] [OH⁻] = X
[CN⁻] = 0.19 M - x
kb = x² / (0.19 M - x )
1.62 × 10⁻⁵ = x² / (0.19 M - x )
x = [OH⁻] = 0.00174 M
the pOH = - log (0.00174)
pOH = 2.76
pH + pOH = 14
pH = 14 - pOH
pH = 14 - 2.76
pH = 11.2
Thus, The pH at 25 °C of a 0.19 M solution of potassium cyanide . note that hydrocyanic acid is a weak acid with pka of 9.21 is 11.2.
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photons with a wavelength of 353 nm have just enough eneryg ot rupture the c-cl bond in cf3cl. what is the bond dissociation energy in kj/mol
[tex]5.64 * 10^{-19 J}[/tex]
We know that
Dissociation energy = h ν
Where h is planks constant
ν = C / λ
where λ is the wavelength = 353nm = [tex]3.53 * 10^{-7} m[/tex]
Dissociation energy = h C / λ
Ed = [tex](6.62 * 10^{-34 }Js * 3 * 10^{8} m /s) / 3.53 * 10^{-7} m[/tex]
Ed = [tex]5.64 * 10^{-19 }J[/tex]
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of the following molecules, only is polar. question 37 options: a) cbr4 b) sih2cl2 c) bf3 d) becl2 e) cl2
Of the molecules, only SiH2Cl2 is polar.
What is Polar molecules?A molecule or its chemical groups have an electric dipole moment with a negatively charged end and a positively charged end when they are polar, which in chemistry is the separation of electric charge. Because the bonded atoms' electronegativity differs, polar compounds must have one or more polar bonds. Positive and negative charge areas are found in polar compounds. An illustration of a polar substance is water. Given its form and type of bonds, the molecule has a slight positive charge at one end (the hydrogen end) and a slight negative charge at the other (the oxygen end). Of the following molecules, only SiH2Cl2 is polar.The complete question is,
23) Of the following molecules, only ________ is polar.
A) BeCl2
B) BF3
C) CBr4
D) SiH2Cl2
E) Cl2
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use lechateliers principle to predict the effects if any of each of the following changes on the equilibrium system described below in a closed container a. c is added
The forward and reverse reactions are happening simultaneously, but the system is in a balanced condition since all of the material concentrations are constant. The majority of chemical processes that occur in the human body are governed by the equilibrium process.
What is Equilibrium system ?The forward and reverse reactions are happening simultaneously, but the system is in a balanced condition since all of the material concentrations are constant. The majority of chemical processes that occur in the human body are governed by the equilibrium process.
Several instances of equilibrium include: a book that is open and at rest. a vehicle that is going steadily. a chemical process where both the forward and backward rates of reaction are equal.
Examples of equilibrium include a book that is at rest on a table. a vehicle that is going steadily. a chemical process where both the forward and backward rates of reaction are equal.
What is Lechateliers principle ?Le Chatelier's principle, commonly known as Chatelier's principle, is a chemical principle that is used to foretell how a change in circumstances will affect chemical equilibria.
The Le Chatelier principle explains how an equilibrium changes when its conditions change. For variations in concentrations, temperature, or pressure, the shift's direction can be predicted. Although catalysts speed up the process of reactions reaching equilibrium, they do not change the location of an equilibrium.
There was distilled water in the
Cuvette when the student placed standard Solution init.
Explanation ;In the above graph shown in question, the absorbance is less than actual at o'o som co't It means there are error in concentration and concentration is less than actual.So, it is only possible in case of dilution.So, so, Student Put Solution in cuvette before removing distilled water presentinit. That causes decreases in concentration.To know more about Lechateliers principle please click here ;
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5. Which is true when a piece of paper is
crumbled? sC.8.P.9.1
A Volume and mass increase.
B
Volume and mass decrease.
C) Volume and mass do not change.
OD Volume might decrease or increase, but
mass does not change.
if 4-methylcyclohexanol is used as starting material, is there evidence for the occurrence of carbocation rearrangements?
After a carbocation rearrangement (hydride-shift) to a tertiary position, methylene cyclohexane is formed. Methylene becomes cyclohexane when the proton and hydrogen are removed.
What is carbocation rearrangements?The migration of a carbocation from an unstable form to a more stable one using different structural reorganizational "shifts" inside the molecule is known as a carbocation rearrangement, which is a common process in organic chemistry.A rearrangement is feasible because the SN1 mechanism involves the creation of a carbocation. Let's examine this SN1 reaction now. Our alkyl halide is on the left, ethanol is our solvent, and our product is on the right.Methylene cyclohexane is created by a carbocation rearrangement (hydride-shift) to a tertiary position. When the proton and hydrogen are taken out of methylene, cyclohexane results.To learn more about carbocation rearrangements refer to:
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the prosecutor wanted to convince the jury that the suspect could have created an explosive with common household chemicals, so she asked a professor with earned by studying explosive chemicals for 20 years, to take the stand.
In order to persuade the jury that the suspect could have made an explosion using simple home chemicals, the prosecutor consulted a professor who had expertise in explosive chemicals.
Non-food chemicals used often in and around the typical home are referred to as home chemicals. They are a category of consumer goods frequently kept in the kitchen or garage that are specifically made to help with cleaning, cooking, cooking maintenance, house and yard upkeep, pest control, and general hygiene. Are called home chemicals.
An explosive chemicals is a material or mixture that reacts violently to an ignition source by combusting. This reaction is an exothermic process that causes a huge quantity of energy to be released quickly. It is also characterized by a quick, violent release of pressure called explosive chemicals.
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How does the setting influence the main character in the text the setting allows the main character?.
Setting has an impact on the narrative through influencing the growth and theme. It also has an impact on the narrative by drawing the reader in and assisting them in picturing the occasions and setting of the story.
What influence does chemistry have on our lives?Chemistry provides for all of our basic needs, including food, clothing, shelter, health, energy, and clean air, water, and soil. Chemical technologies provide new solutions to problems with hygiene, resources, especially energy usage, which enhance our quality of life in many ways.
What does the word "influence" mean?The term in current usage often refers to the capacity to influence someone or something, particularly the capacity to bring about changes without exerting direct pressure.
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TRUE/FALSE glycolysis occurs in the , the citric acid cycle takes place in the , and the electron transport chain is located in the .
Glycolysis occurs in the cytoplasm of the cell, the citric acid cycle takes place in the mitochondria, and the electron transport chain is located in the inner membrane of the mitochondria.
The primary metabolic process of cellular respiration that produces energy in the form of ATP is glycolysis. Through a series of enzyme processes, glucose is "cleaved" or broken down into two three-carbon sugars of pyruvate. Glycolysis yields a net gain of two pyruvate molecules, two ATP molecules, and two NADH molecules for the cell to use as energy. The Krebs Cycle is linked to the glycolytic pathway after glucose is converted to pyruvate, where more ATP will be produced to supply the energy needs of the cell. The first stage of aerobic respiration is called glycolysis. It involves the division of a glucose molecule into two pyruvate molecules. NAD+ acts as an electron acceptor in the redox processes of glycolysis.
During glycolytic processes, NAD+ is reduced to NADH, which is then oxidized back during aerobic respiration by oxidative phosphorylation.
One molecule of glucose enters glycolysis and splits into two molecules of pyruvate and two molecules of NADH, using a total of two molecules of NAD+ as the electron acceptor.
The complete question is:
Please fill in the blanks
Glycolysis occurs in the ______, the citric acid cycle takes place in the ________, and the electron transport chain is located in the __________.
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use appropriate chemical principles to explain the observation. a. Sodium chloride, NaCl, may be spread on an icy sidewalk in order to melt ice. Equimolar amounts of calcium chloride, CaCl_2, are even more effective. (Explain both observations) b. When 1 mole of sodium chloride, NaCl is dissolved in 1 liter of water, the effect on the freezing point of the resulting solution is greater than when 1 mole of sugar, C_12 H_22 O_17, is dissolved in 1 liter of water. 25.0 grams of a non-electrolyte is dissolved in 400 g of water. If the freezing point of the resulting solution is -11.16 degree C. (Freezing pt depression of water is 1.86 degree/kg water and the boiling pt elevation of water is 0.52 degree/kg water) a. What is the corresponding boiling point of the solution? b. What is the mole mass of the solute (non-electrolyte)?
The boiling point would vary but it usually is 100-degree celcius, and the moles of solute would remain 1 mole.
Sodium Chloride is commonly known as salt, which is an ionic compound having the chemical formula (NaCl), representing a 1:1 ratio of chloride and sodium ions. Sodium chloride is a salt that is the most responsible for the salinity of seawater and of the extracellular fluid of various multicellular organisms. It is commonly used as a condiment and food preservative in its edible form of table salt.
Certain huge amounts of NaCl are used in numerous industrial processes and are a major source of sodium and chlorine compounds that are used as feedstocks for further chemical syntheses. A second major sodium chloride application is the de-icing of roadways in sub-freezing weather. About 1% to 5% of the seawater is made of sodium chloride. It is a solid crystalline material white in color. It is called a saline solution in aqueous form.
The molecular weight of NaCl is 58.44g/mol. This is a water-soluble compound with a sodium cation and chloride anion. It is widely well-known as table salt and is used mostly in the food industry for preservation and flavoring purposes. The pH value of NaCl is 7.
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in a 51.0-g51.0-g aqueous solution of methanol, ch4o,ch4o, the mole fraction of methanol is 0.100.0.100. what is the mass of each component?
Definition of mole fraction to find a relationship between the number of moles of methanol, and the number of moles of water.
Mole fraction is defined as the ratio between the number of moles of a component of a solution and the total number of moles present in that solution.
mole fraction = Number of moles / Total moles
mole fraction of methanol = 0.100
Solution contains methanol, solute and water, solvent. Let x be the number of moles of methanol and y to be the number of moles of water.
then, mole fraction of methanol = x/(x+y) = 0.100
number of moles of methanol, x = 0.100(x+y)
Solution has a total mass of 51.0g
The number of moles of methanol and the compound's molar mass to determine the mass present in solution.
mass percent of methanol = 32(x) g
mass percent of water = 18(y) g
and given mass of mixture is 51g
=> 51 = 32x+18y
again, number of moles of methanol,
x = 0.100(x+y)
0.9x = 0.1y
x/y = 1/9
x = y/9
In equation,
51 = 32x+18y
51 = 32(y/9) +18y
459 = 32y + 162y
y = 2.3 moles of methanol.
hence, x = 0.26 moles of water
Now, use this formula to determine mass of each compound
mass = number of moles * Molar mass
mass of water = 0.26*18 = 4.68 g
mass of methanol = 2.3*32 = 8.41 g
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which of the following did you use the refractive index data from the distillation to determine? group of answer choices purity of the first fraction purity of the fourth fraction purity of all fractions ratios of the components in each fraction
The answer is purity of all freactions.
Miscible liquids must be separated during the distillation process known as fractional distillation. The procedure entails numerous condensations and distillations, and the mixture is often broken down into its component elements. When the combination is heated to a particular temperature where portions of the mixture begin to evaporate, the separation occurs.
Two helpful physical characteristics of a liquid are its boiling point and refractive index (RI). They serve as identifiers. The purity of the sample under examination is also measured using the RI.
So that means, Refractive index is used for purity of all the fractions of the sample.
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A copper penny dropped into a solution of nitric acid produces a mixture of nitrogen oxides. The following reaction describes the formation of NO, one of the products 3Cu(s) + 8H(aq) + 2NO, (aq) - 2NO(g) + 3Cu2+ (aq) + 4H,0(1) 1st attempt Part 1 (1 point) Which species is reduced in the reaction above? Choose one: H200) NO(g) Cu(s) H(aq) NO3(aq) Cu2+(aq) Part 1 (1 point) Which species is reduced in the reaction above? Choose one: OH2O(1) O NO(g) O Cu(s) O OH(aq) O NO3(aq) O Cu2+ (aq) Part 2 (1 point) Which species is oxidized in the reaction above? Choose one: O H2O() O NO(g) O Cus) O H(aq) O NO3(aq) O Cu2+ (aq)
When a copper penny is dropped into a solution of nitric acid produces a mixture of nitrogen oxides. In this reaction, NO₃⁻ is the reduced specie and Cu is the oxidized specie.
Redox reactions, also known as oxidation-reduction reactions, are processes that involve the transfer of electrons from one species to another. An element that is going through the process of oxidation will lose electrons, whereas an element that is going through the process of reduction will acquire electrons during an electron transfer reaction. The species that loses electrons is referred to be oxidized, whereas the species that acquires electrons is referred to as reduced.
Write the reaction
3Cu (s) + 8H⁺ (aq) + 2NO₃⁻ (aq) → 2NO(g) + 3Cu⁺² (aq) + 4H₂O(1)
As we can see that the oxidation state of Cu is increased, which means that it is oxidized. While the oxidation state of 2NO₃⁻ is decreased, which means that it is reduced.
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if 4 moles of hydrogen react with 4 moles of oxygen, how many moles of water would be produced according to the following reaction? what is the limiting reactant?
When 4 moles of hydrogen gas are burned in an environment with an abundance of oxygen, 4 moles of water will be produced.
How many moles of water are produced when 4 moles of oxygen react with hydrogen?Four moles of water.Four moles of water will be created when four moles of hydrogen gas are burned in an environment with an abundance of oxygen.Assuming that oxygen is our limiting reactant (as it is not stated differently), we may determine that we produce two moles of water for every one mole of oxygen.This indicates that humans receive eight moles of water for every four moles of oxygen.Four moles of water will be created when four moles of hydrogen gas are burned in an environment with an abundance of oxygen.As homonuclear diatomics, oxygen and hydrogen are present.To learn more about moles of hydrogen refer
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What is an example of a graphic aid?.
Charts, graphs, maps, flashcards, posters, images of chemical compounds, photos, booklets, folders, pamphlets, cartoons, and comics are all examples of graphic aids.
Effective use of graphic aids can improve almost all presentations. There are many other kinds of props that can be used, including as handouts, overhead projectors, whiteboard drawings, PowerPoint presentations, and more. A visual graphic or graphic aid is any image that helps you, the reader, understand the text that the visual aid is accompanied by. Readers too frequently skim over or entirely ignore graphs, diagrams, charts, and tables.
chemical compound, any material made up of similar molecules made up of two or more different chemical elements' atoms. A total of more than 100 different chemical elements make up the atoms that make up all matter in the chemical compound.
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what pressure would be required on the plunger to cause water to flow from left to right? see section 35.1 (page) .
0.1MPa pressure would be required on the plunger to cause water to flow from left to right.
what is pressure?the force applied perpendicularly to an object's surface divided by the surface area over which it is applied.
The pressure exerted on the surface by a force of magnitude "F" Newton when applied perpendicularly to surface area "A" is equal to the ratio of F to A. The pressure (P) formula is as follows:
P=F/A
The pascal is the pressure unit used in SI (Pa).
A force of one newton applied across a surface area of one metre square is referred to as a pascal.
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compared to the dichromate oxidizing agents, oxone is: (select all that apply) compared to the dichromate oxidizing agents, oxone is: (select all that apply) environmentally sound extremely reactive safe inexpensive
Compared to dichromate oxidizing agents, oxone is safe, inexpensive, and environmentally sound.
Oxone (chemical formula: KHSO5) is potassium peroxymonosulfate. It's a versatile oxidant that oxidizes aldehydes to carboxylic acids. Oxone is produced by combining oleum and hydrogen peroxide. It's soluble in water, methanol, and other solvents and dissolves fast.
Since it's relatively easy and cheap to make, oxone is used for various things in industrial and consumer applications, such as:
Cleaning products.Denture cleaningWater treatmentPaper productionPool and spaMetal surface preparationThe powder itself can cause serious skin problems (since it is corrosive), but oxone solution is nonirritating and not as corrosive (compared to bleach, for example), which makes it safer than most oxidizing agents.
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assume the given amount of rbf fully dissociates in water. calculate the molarity of a solution if 124.86 g of rbf are dissolved into a solution of water that has a final volume of 2.00 l.
Molarity of a solution if 124.86 g of rbf are dissolved into a solution of water that has a final volume of 2.00L is 0.59.
What is molarity?Molarity is used for dilute aqueous solutions held at a constant temperature. In general, the difference between molarity and molality for aqueous solutions near room temperature is very small and it won't really matter whether you use a molar or molal concentration.
MOLARITY = no of moles of solute/volume of soln in litres
No of moles of rbf = 124.6/104.46
= 1.19
Volume of soln = 2
Molarity=1.19/2 = 0.59
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