When the reactants have less enthalpy than the products, then heat energy is given out. That is option A.
What is exothermic reaction?An exothermic reaction is a type of reaction in which the energy level of the reactants are higher than that of the product.
It is this discrepancy in the energy levels of both the reactants and products would lead to the generation and release of energy into the surrounding environment.
The enthalpy of exothermic reaction is gotten by the difference between the energy needed to break the bonds of reactants and the energy needed for the formation of products.
Therefore,when the reactants have less enthalpy than the products, then heat energy is given out.
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How many grams of water are made from the reaction of 16.0 grams of o2? given the reaction: 2h2 o2 --> 2h2o
Answer:
18.0 g H₂O
Explanation:
To find the mass of water (H₂O), you need to (1) convert grams O₂ to moles O₂ (via the molar mass), then (2) convert moles O₂ to moles H₂O (via mole-to-mole ratio from equation coefficients), and then (3) convert moles H₂O to grams H₂O (via the molar mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value.
Molar Mass (O₂): 2(15.998 g/mol)
Molar Mass (O₂): 31.996 g/mol
Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol
Molar Mass (H₂O): 18.014 g/mol
2 H₂ + 1 O₂ -----> 2 H₂O
16.0 g O₂ 1 mole 2 moles H₂O 18.014 g
--------------- x ---------------- x --------------------- x ----------------- = 18.0 g H₂O
31.996 g 1 mole O₂ 1 mole
A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
The approximate molar mass of lauryl alcohol is 183 g/mol.
As per Raoult's law:
[tex]T_b - T_s =KC m[/tex]
Tb = the freezing point of benzene (5.5oC), Ts = the freezing point of the solution, K = the cryoscopic constant (5.12 K*kg/mol for benzene), and Cm = the molality of the solution.
[tex]m_{l}[/tex]/M[tex]m_{s}[/tex] = [tex]C_{m}[/tex] where ml is the mass of lauryl alcohol and ms is the mass of the solvent.
[tex]T_b - T_s =KC m[/tex]=K[tex]m_{l}[/tex]/M[tex]m_{s}[/tex]
Therefore, M=[tex]\frac{Km_{l} }{(T_b - T_s)m_{s} }[/tex]=[tex]5.12*5/0.1(5.5-4.1)[/tex]=183 g/mol.
Lauryl alcoholAn organic substance called lauryl alcohol is created industrially from coconut or palm kernel oil. It is an alcoholic fat. The use of sodium lauryl sulfate and other sulfate esters of lauryl alcohol as surfactants is extremely common. In shampoos, sodium laureth sulfate, ammonium laureth sulfate, and sodium lauryl sulfate are all utilized. Lauryl alcohol has a floral scent and is flavorless and colorless. In addition to being a flavor-enhancing food additive, lauryl alcohol is also used to create medicines, lubricating lubricants, surfactants, and monolithic polymers. Lauryl alcohol is a kind of emollient used in cosmetics. Lauryl alcohol, a significant scent, and 1-bromododecane, an alkylating agent used to increase the lipophilicity of organic molecules, are both precursors to Lauryl alcohol.
A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
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The conversion of the fatty acid palmitate (c16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately ____ atp equivalents
The conversion of the fatty acid palmitate (C-16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately 106 atp equivalents.
The most prevalent kind of fatty acid with sixteen carbon atoms without carbon-carbon double bonds would be palmitic acid. There must be a maximum of seven cycles of beta-oxidation in order to totally degrade the fatty acid. 8 acetyl-CoA molecules, 7 NADH molecules, with 7 FADH2 molecules are produced as a result of this.
The primary enzyme, CAT-1, catalyzes the production of acylcarnitine carnitine, which provides the rate-limiting step in beta-oxidation.
Therefore, the conversion of the fatty acid palmitate (C-16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately 106 atp equivalents.
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What volume will 5.6 moles of sulfur hexafluoride
(SF6) gas occupy if the temperature and pressure of
the gas are 128°℃ and 9.4 atm?
Answer:
19.6 L SF₆
Explanation:
To find the volume, you need to use the Ideal Gas Law:
PV = nRT
In this equation,
-----> P = pressure (atm)
-----> V = volume (L)
-----> n = moles
-----> R = Ideal Gas constant (0.08206 atm*L/mol*K)
-----> T = temperature (K)
After converting the temperature from Celsius to Kelvin, you can plug the given values into the equation and simplify to find "V".
P = 9.4 atm R = 0.08206 atm*L/mol*K
V = ? L T = 128 °C + 273.15 = 401.15 K
n = 5.6 moles
PV = nRT
(9.4 atm)V = (5.6 moles)(0.08206 atm*L/mol*K)(401.15 K)
(9.4 atm)V = 184.3429
V = 19.6 L
What is the ph of a solution which is 0. 025 m in weak base and 0. 039 m in the conjugate weak acid ( a = 7. 1 × 10−6)?
The pH of the solution is 4.96.
pH measures the amount of hydrogen and hydroxide ions in a solution and shows how acidic or alkaline it is.
Weak bases are the solutions to substances that do not dissociate completely in water. Conjugate acids are the product formed by the base and have a difference of one proton.
Using the base dissociation constant, Ka
pKa can be calculated as,
[tex]pKa = - log (Ka)[/tex]
[tex]= - log (7.1 * 10^-6)[/tex]
[tex]= 5.15[/tex]
0. 025 M in the weak base and 0. 039 M in the conjugate weak acid.
Therefore, a weak base and its conjugate acid are present in equal proportions in buffer solution. As we are aware, the Henderson-Hasselbalch equation can be used to determine the pH of a buffer solution that comprises a weak base and its conjugate acid.
[tex]pH = pK + log [\frac{A^-}{HA} ]\\[/tex]
[tex]= 5.15 + log( \frac{0.025}{0.037})[/tex]
[tex]=5.15 + log 0.64[/tex]
[tex]=5.15-0.19[/tex]
[tex]=4.96[/tex]
Therefore, the pH of the solution is 4.96.
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Explain how the data answered the essential question. What can you conclude from the experiment? Use the following questions to guide your thinking:
Does the filament with the anther rise above the stigma?
If the pollen is located above the stigma, the flower is generally self-pollinated. If the pollen is below the stigma, the flower is generally cross-pollinated. Based on this information, is your flower self-pollinated or cross-pollinated?
Answer:
sorry i don't know this question of answer
Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume.
a. true
b. false
Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume this statement is incorrect.
Hence, Option B is correct answer.
What is Rutherford's Scattering Experiment ?Rutherford's Alpha Scattering Experiment demonstrated that Rutherford bombarded most of the alpha particles passed straight through the gold foil. Rutherford observed that most part of the atom is empty.
What is Thomson Atomic Model ?The mass of an atom was uniformly distributed throughout its volume this experiment was given by Thomson Model.
Thus from the above conclusion we can say that Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume this statement is incorrect.
Hence, Option B is correct answer.
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With respect to bonding and electrical conductivity, respectively, sulfur hexafluoride, sf6(g), would be described as?
With respect to bonding and electrical conductivity, respectively, sulfur hexafluoride, sf6(g), would be described as "covalent and a nonconductor" because sulfur hexafluoride would be a covalent compound since neither fluorine nor sulfur are metallic elements and aqueous solutions containing covalent bonding do not conduct electricity.
What is electrical conductivity?The ability of an electrical charges or heat to move through a material is measured by its conductivity. A material is considered a conductor if it offers relatively minimal resistance to the transfer of thermal or electric energy.
The electricity is conducted by-
Particles that are electrically charged migrate, which results in electrical conductivity in metals. The existence of electron pairs, that are electrons in an atom's outer shell that really are free to move, is what distinguishes the atom of metal elements. Metals can carry an electric current thanks to these "free electrons."Valence electrons can migrate through into the lattice that makes the physical configuration of a metal because they are free to do so. Free electrons pass an electrical charges as they move through metal in an electric field, resembling billiard balls striking one another.To know more about the Electrical conductivity, here
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What is the name of the force that holds positively and negatively charged ions together in ionic compounds? nuclear forces van der waals forces electrostatic forces hydrogen bonding
Answer: electrostatic attraction
Explanation: ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
The instructions for the experiment direct you to prepare 30 mL of 1.5 M HCl solution. In the chemical closet, you locate an 18M stock solution of HCl. What volume of the 18M HCl is needed to make the solution?
The volume of the 18M HCl needed to make the solution will be 2.5 mL.
DilutionAccording to the dilution principle, the number of moles of solutes in a solution before and after dilution must remain the same.
Since, mole = molarity x volume
Thus, molarity x volume before dilution = molarity x volume after dilution.
Mathematically, the equation is written as: m1v1 = m2v2
In this case, m1 = 18 M, m2 = 1.5 M, and v2 = 30 mL.
What we are looking for is v1, the amount of the stock HCl needed for dilution.
v1 = m2v2/m1 = 1.5 x 30/18 = 2.5 mL.
Thus, 2.5 mL of the stock HCl would be needed.
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As water freezes, ________. its hydrogen bonds break apartit loses its polarityit cools the surrounding environmentits molecules move farther apart.
The molecules of water move farther apart upon freezing.
Molecules are the compounds formed by the combination of one or more atoms by certain chemical bonds. Each molecule has distinctive physical and chemical properties.
Water is also a molecule consisting of two H atoms and one O atom. Its physical state in nature is liquid. The atoms present inside water are joined together by the hydrogen bonding. Upon freezing, water molecules start forming more hydrogen bonds with the molecules present in their neighborhood. This makes them to move farther and spread apart. This also marks the reason for ice being denser than water.
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The addition of two-carbon units to a growing fatty acid chain is directly driven by?
The addition of two-carbon units to a growing fatty acid chain is directly driven by Decarboxylation of malonyl-coA.
Hence, Option C is correct answer.
What is Fatty Acid ?Fatty acids are carboxylic acid in which molecules are composed of a straight long chains of even number of carbon atom with hydrogen atoms. Fatty acid is an acid that is found in fats and oils.
What is Decarboxylation ?The chemical reaction which eliminates a carboxyl group and releases carbon dioxide is called decarboxylation.
Thus from the above conclusion we can say that The addition of two-carbon units to a growing fatty acid chain is directly driven by Decarboxylation of malonyl-coA.
Hence, Option C is correct answer.
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Disclaimer: The question was given incomplete on the portal. Here is the complete question.
Question: The addition of two-carbon units to a growing fatty acid chain is directly driven by
a) Hydrolysis of ATP
b) Oxidation of NADPH
c) Decarboxylation of malonyl-coA
d) Reduction of NADP+
The tetrahedral structure that forms the backbone of all silicate minerals is composed of silicon and what other element?
The tetrahedral structure that forms the backbone of all silicate minerals is composed of silicon and option(b) i.e, oxygen
The tetrahedron-shaped silica chemical structure. It comprises a core silicon atom that connects with four oxygen atoms on both sides. The tetrahedron-shaped geometric figure that is drawn around this configuration has four sides, each of which is an equilateral triangle.
Silicon and oxygen make up the silica tetrahedron, which serves as the base for all silicate crystals. In all sorts of rocks and everywhere in the world, the mineral quartz, SiO2, is formed. In deposited rocks, it manifests as sand grains, in igneous and metamorphic rocks, as crystals, and in veins that cut through all different types of rocks. These veins occasionally contain gold or other precious metals. It is widely known that up until the late 1700s, it was simply known as rock crystal. Quarts belong to a class of minerals known as silicates, all of which include silicon and oxygen in varying amounts. The majority of the minerals in the crust of the planet are silicates, and most estimates place 97 percent of the mantle and 95 percent of the crust in the crust.
The complete question is:
The silica tetrahedron that forms the backbone of all the silicate minerals is composed of silicon and what other element?
a. magnesium c. iron
b. oxygen d. carbon
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How many moles of iron iii oxide can be prepared from 6 moles of oxygen?
Answer:
6molO2 3/2O22Fe=4,5024molFe .
Explanation:
You have to start with the balanced chemical equation. Iron is just Fe. Oxygen in nature is found as an O2 molecule.
2Fe(s)+3/2O2(g) Fe2O3(s)
If you check the balance. There are two Fe on both sides of the equation and three O on both sides, so it’s balanced.
Now use the stoichiometric ratios (the coefficients of the balanced chemical equation) to convert 6 mol of oxygen to iron.
6molO2 3/2O22Fe=4.5024molFe .
These coefficients can be used as conversion factors when it comes to substance moles.
Some of you may insist that a balanced chemical reaction must have whole numbers. This is not really necessary. The reaction I wrote above is a named type of reaction, called Fe2O3 formation. In this type of reaction, there must be a mole of product so that it requires that sometimes there are fractional numbers for the coefficients in the reagents.
But, just for the argument, let’s rebalance the equation for integer coefficients only.
4Fe(s)+3O2(g) 2Fe2O3(s)
We are now using the coefficients as conversion factors, as we have done before.
find the relative molecular mass of MgCo3
The molecular mass of MgCO3 is 84.313 grams/mol.
How Does The molecular Mass Calculator Work?The standard atomic weights for that element are listed in a table, and each atom is compared to those values. The molar mass calculator displays the findings in a table at the bottom that includes the number of atoms, the atomic weights of the constituent elements, and the molecule's molecular weight. It provides a solution for a molecular formula's overall mass.From there, we dissect the components of the formula for magnesium carbonate: an atom of magnesium, an atom of carbon, an atom of oxygen, etc.You will need to unpack any bracketed expressions because (yet) we don't have brackets implemented. They have no impact on weight in any case. Multiply each element by how many times the structure in brackets appears. For instance: C6H5-3PCCO becomes C18H15-3PCCO.The relative molecular mass of MgCo3
Symbol Mg C O
Atoms 1 1 3
Name Magnesium Carbon Oxygen
Atomic 12 6 8
Molar Mass 24.305 12.011 15.999
Total 24.305 12.011 47.997=84.313
The molecular mass of MgCO3 is 84.313 grams/mol.
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A compound composed of 3. 3% h, 19. 3% c, and 77. 4% o has a molar mass of approximately 60 g/mol. What is the molecular formula of the compound?.
The molecular formula of the given compound is H₂CO₃ or Carbonic acid.
Given that,
H= 3.3%
C=19.3%
O= 77.4%
No.of moles of H= 3.3/1= 3.3
No. of moles of C= 19.3/12= 1.60
No.of moles of O= 77.4/16= 4.83
Therefore,the ratio of the atoms of C,H and O= 3.3 : 1.60 : 4.83
Divide by smallest value which you get= 3.3/1.60 : 1.60/1.60 : 4.83/1.60 =2 : 1 : 3
So,the empirical formula is H₂CO₃
Let the Molecular formula is (H₂CO₃)n
Then, molar mass = (2×1+1×12+3X16)n = 62n
As the question, 62n = 60
or, n= 0.96 (round figure is 1)
So, the molecular formula is (H₂CO₃)1= H₂CO₃ i.e., the compound is Carbonic acid.
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A liquid takes 10.14 x 10^6 j of energy to boil 28.47 kg at 298 k. using the latent heats of vaporization of 5 liquids below, determine what the substance is. acetone: 538,900 j kg-1 ammonia: 1,371,000 j kg-1 propane: 356,000 j kg-1 methane: 480,600 j kg-1 ethanol: 841,000 j kg-1
Correct option is C
Latent heat of vaporization is the amount of heat required to bring about the phase transition from liquid to gaseous state, at its boiling point.
The substance is Propane :
10140000 J of heat is used to boil 28.47 kg at 298 K. Here, the important thing is, the liquid is changing to vapor and the temperature is not changing means it's a phase change. So, the formula used for this is:
q=m× Δ[tex]H_{vap}[/tex]
where, q is the heat energy, m is mass and Δ[tex]H_{vapour}[/tex] is the enthalpy of vaporization.
Let's rearrange the formula for as:
Given mass of the liquid = 28.47kg
Heat required to boil the liquid = 10.14 ×[tex]10^{2} J[/tex]
Let's plug in the values: [tex]\frac{10.14*10^{2}J }{28.47Kg} =356164\frac{J}{Kg}[/tex]
Rounding off 356164 will turn into 356000 J[tex]Kg^{-1}[/tex]
Hence, the right choice is C. propane 356000 j[tex]Kg^{-1}[/tex]
What is latent heat ?
Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.
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Arrange the procedural steps, from start to finish, that are required to prepare indigo from nitrobenzaldehyde and acetone in base, and then test its ability as a dye.
Acetone has α-hydrogens (on both sides) and thus can be deprotonated to give a nucleophilic enolate anion. The aldehyde carbonyl is much more electrophilic than that of a ketone, and therefore reacts rapidly with the enolate.
What is nitrobenzaldehyde?Synthesis. The synthesis of 3-nitrobenzaldehyde is achieved via nitration of benzaldehyde, which yields especially the meta-isomer. Creation allocation is about 19% for the ortho-, 72% for the meta- and 9% for the para isomers.Acetone, propanone, or dimethyl ketone, is an organic combination with the formula (CH3)2CO. It is the easiest and smallest ketone. It is a colorless, highly volatile, and combustible liquid with a characteristic aromatic odor.Nitration of benzene with conc nitric acid and conc sulphuric acid gives nitrobenzene. Chlorination with chlorine in the existence of anhydrous aluminum chloride gives meta nitro chlorobenzene.To learn more about sulphuric acid, refer to:
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Some of the most dangerous conditions occur when temperatures are hovering around _______ degrees fahrenheit, or freezing, when snow begins to turn to watery slush.
Answer:
32 ° F
Explanation:
Freezing temp for water is 32 degrees at 1 atm
What is regular (specular)
reflection?
A. when all light rays come in at different angles of
incidence
B. when the rays of light reflect at different angles
C. when all light rays reflect at the same angle
D. when all light rays are perpendicular
Answer:
specular reflection reflects all light which arrives from a given direction at the same angles where diffus reflection reflects light in a broad range of direction
During the process of heat transfer, the heat transferred to or from a system's surroundings is always?
Answer:
During the process of heat transfer, the heat transferred to or from a system's surroundings is always equal in magnitude to the heat transferred to or from the system, but opposite in sign.
What is the 1st law of thermodynamics?
The total energy of an isolated system is said to stay constant according to the first rule of thermodynamics. Energy cannot be generated or destroyed, but it may be transformed from one form into another inside a closed system, which is known as the conservation of energy.
This rule states that when a system is exposed to a certain amount of heat, the amount of heat that the system absorbs is equal to the product of the increase in internal energy (change in internal energy) of the system and the external work that the system does. The relationship between a system's internal energy and work output and the heat given to it is demonstrated by the first law of thermodynamics. This equation provides the foundation for the majority of practical innovations like heat engines, freezers, and air conditioners.
The equation for the first law of thermodynamics is given as; ΔU = q + W
Where,
ΔU = change in internal energy of the system.q = algebraic sum of heat transfer between system and surroundings.W = work interaction of the system with its surroundings.The heat transported to or from a system's surroundings during the process of heat transfer is always opposite in sign, but equal in size, to the heat transferred to or from the system.
What is heat transfer?
The flow of thermal energy between physical systems is known as heat transfer. The temperatures of the systems and the characteristics of the medium used to transmit the heat affect how quickly it transfers. Conduction, convection, and radiation are the three basic ways that heat is transferred. It is crucial to employ heat transfer, or the movement of energy in the form of heat, in applications of the First Law of Thermodynamics since it is a mechanism through which a system changes its internal energy. Diffusion and conduction are two different concepts. Diffusion linked to fluid mixing is not the same as conduction.
The Second Law of Thermodynamics controls the direction of heat transmission, which is from one area of high temperature to another area of lower temperature. The internal energy of the systems from and to which the energy is transmitted is altered during heat transfer. Heat transfer will take place in a way that makes the group of systems' entropy higher.
In physics, heat is described as the flow of thermal energy over a boundary that is clearly defined surrounding a thermodynamic system. The amount of work that a thermodynamic system may accomplish is known as the thermodynamic free energy. Enthalpy is a thermodynamic potential with the letter "H" that is made up of the system's internal energy (U) plus the volumetric product of pressure (P) and temperature (T) (V). A joule is a unit used to measure energy, effort, or heat production.
The quantity of heat transmitted in a thermodynamic process that modifies a system's state relies on how that process happens, not just the net difference between the process' beginning and ending states, since heat transfer is a process function (or route function), as opposed to a function of state.
The heat transfer coefficient, which represents the relationship between the heat flux and the thermodynamic force that drives the flow of heat, is used to determine both thermodynamic and mechanical heat transfer. A quantitative, vectorial description of the movement of heat through a surface is called a heat flux.
The term "heat" is sometimes used interchangeably with "thermal energy" in technical applications. This usage derives from the historical understanding of heat as a fluid (caloric) that may be transported by a variety of reasons, which is also prevalent in laypeople's language and daily life.
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Eddie
The ________ of a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings.
The temperature at which a liquid's vapor pressure equals the pressure of the gas above it is known as the boiling point of the liquid. The temperature at which a liquid's vapor pressure equals one atmosphere is considered the liquid's typical boiling point (760).
When the vapor pressure of a liquid equals the pressure of the gas above it, the liquid boils. The temperature at which a liquid will boil decreases with decreasing gas pressure above the liquid.
The Macro Perspective.A liquid's vapor pressure rises as it warms until it reaches the same level as the gas above it. Within the bulk liquid, vaporize liquid (i.e., gas) bubbles form, rise to the surface, burst, and release the gas. (A bubble's internal vapor pressure is sufficient to prevent the bubble from collapsing at boiling temperature.)The liquid's molecules must overcome their forces of attraction in order to create vapor.
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Provide only the major alkene product that results when n,n-dimethylhexan-2-amine undergoes cope elimination?
The major alkene product that results when n,n-dimethylhexan-2-amine undergoes cope elimination is hexene or hex-1-ene.
The reaction in which an amine is oxidize to an intermediate called an N-oxide which , when heated , acts as base in an intramolecular elimination reaction. The oxidation of tertiary amine into N-oxide is called cope reaction.
This elimination gives the less substituted alkene along with more substituted alkene which is Zaitsev product.
Example: Cope elimination of n,n-dimethylhexan-2-amine form hexene.
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Why are thiols more nucleophilic than alcohols?
Answer:
Thiols contain stronger acids than alcohols
Explanation:
Answer:
Sulfur is a bigger atom than oxygen and has a lower electgronegativity value. Therefore, the lone pair availability in thiol is higher than alcohol
Explanation:
three difference between radicle and plumule
Answer:
1)RADICLE ->It is the embryonic root of the plant.
PLUMULE ->It is the embryonic shoot of the plant.
2)RADICLE ->It grows downwards into the soil.
PLUMULE ->It grows upwards into the air.
3)RADICLE ->Radicle is the first part of the seedling.
PLUMULE -> Plumule grows after the radicle.
4)Radicles are negatively phototropic. Plumule is positively phototropic.
i am glad i helped
________ is the major intermolecular attraction responsible for the relatively high boiling points of alcohols.
Answer:
Hydrogen bonding is the major intermolecular attraction responsible for the relatively high boiling points of alcohols.
Which of the first 20 elements in a Periodic table has atoms with the greatest mass?
As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.
As a gaseous element condenses, the atoms become close together and they have more attraction for one another.
What is condensation?
Condensation is the transformation of water from its gaseous or vaporous state into its liquid state. It typically occurs when warm airborne vapor comes into contact with a cold surface. When gas molecules transfer their energy to a cooler surface, they begin to slow down and attract one another, forming a liquid.Examples:
Dew in the morning occurs when moisture in the air condenses on grass that has been chilled over night.Droplets on the soda can. Moisture from the warm outer air condenses on the outside of the can due to its cool surface.A foggy windscreen. The moisture in the air in your automobile is increased by the breath and body heat of the passengers. The moisture condenses as droplets that fog your window when there is enough moisture present and a chilly enough windscreen.Learn more about the condensation with the help of the given link:
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What is the molar solubility of agcl in 0. 30 m nacl at 25°C. ksp for agcl is 1. 77 × 10^-10.
Molar solubility of AgCl will be 0.59 × [tex]10^{-10}[/tex] M.
The amount of a chemical that can dissolve in one liter of a solution before reaching saturation is known as its molar solubility. This implies that the quantity of a substance it can disintegrate in a solution even before the solution becomes saturated with that particular substance is determined by its molar solubility.
A compound's molar solubility would be the measure of how many moles of such a compound must dissolve to produce one liter of saturated solution. The molar solubility unit will be mol L-1.
Calculation of molar solubility:
Given data:
M = 0.30 M
[tex]K_{sp}[/tex] = 1.77 × [tex]10^{-10}[/tex]
The reaction can be written as:
AgCl ⇔ [tex]Ag^{+} + Cl^{-}[/tex]
s s (s+0.30)
[tex]K_{sp}[/tex] = [[tex]Ag^{+}[/tex] ]+ [[tex]Cl^{-}[/tex]]
1.77 × [tex]10^{-10}[/tex] = s (0.30)
s = 1.77 × [tex]10^{-10}[/tex] / 0.3
s = 0.59 × [tex]10^{-10}[/tex] M
Therefore, molar solubility of AgCl will be 0.59 × [tex]10^{-10}[/tex] M.
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What does the duct calculator tell a technician about static pressure and airflow?
Answer:
It displays the static pressure loss over a length of 100 feet for a specific duct size and airflow.
What is a ductulator?People who work in the HVAC and construction industries use ductulators to size the ductwork in mechanical systems. It enables you to select the volumetric flow rate after selecting the static pressure you wish to keep in the duct. The ductulator offers you a wide range of rectangular duct diameters that will create this when you enter those criteria. It also displays the required diameter for a circular duct. The actual instrument is constructed of sturdy, thick paper, and it contains a rotating piece that lets you select the two settings I previously indicated.
