Part A Use the data below to calculate the heat of hydration of sodium chloride. Compound Lattice Energy (kJ mol5 Asoln H (kJ mol ') LICI 834 -37.0 NaCl -769 +3.88 Express your answer to three significant figures. ? AbydH = kJ mol1

Q: What is the freezing point of a solution prepared from 91.9 g ethylene glycol (C2H6O2) and 90.0 g…

A: Given, Mass of ethylene glycol (solute) = 91.9 g  Mass of water (solvent)= 90.0 g = 0.090 kg Molal…

Q: A 181 L aqueous solution has an osmotic pressure value of 3.79 mm Hg at 17 C.  The solution was made…

A: Step 1:To find the molar mass of the solute, we can use the formula for osmotic…

Q: An aqueous solution has a freezing point of -13.8 ∘C, what is the boiling point of the solution? The…

A: ∆Tf = Kf x m ∆Tb = Kb x m

Q: what is the heat of solution, AHsol, for KBr? O-1339 kJ/mol O-657 kJ/mol O 1339 kJ/mol 25 kJ/mol 657…

A:

Q: A sample of an ionic compound is dissolved in water and the water gets warmer. What is  acting as…

A: In thermodynamics, a system is defined as a part of the universe that is being studied, while the…

Q: T OR F The boiling and freezing temperature of a liquid is affected by the amount of solute added…

A: The boiling point is the temperature at which the vapor pressure of a liquid equals the external…

Q: water or in hexane? Indicate the kinds of intermolecular forces that occur between the solute and…

A: We know the concept of 'like dissolves like '. That means polar solute dissolves in polar solvent…

Q: he lattice energy of NaBr is -752 kJ/mol. When 0.7322 g of NaBr is dissolved in water, 0.00427 kJ of…

A: lattice energy = -752 KJ/molmass of NaBr= 0.7322 gheat released = 0.00427 KJenthalpy of hydration =…

Q: When 32.4 g of a certain molecular compound X are dissolved in 65.0 g of benzonitrile (C,H,CN), the…

A: we have to calculate the molar mass of X

Q: A salt has a lattice energy of -844.4 kJ/mol and a heat of solution of -62.2 kJ/mol. What is the…

A: For the given salt, Hlattice = -844.4 kJ/mol Hsolution = -62.2 kJ/mol Hhydration = ?

Q: Calculate the molal formed by adding 2.701 g of methanol (CH3OH) to 100.00 mL of water. The density…

A: Number of moles off methanol = 2.701g / 32.04 g/mol = 0.084mole mass of water = density * volume…

Q: A small amount of sodium chloride (NaCl) is dissolved in a large amount of water. Imagine separating…

A: The heat absorbed or released in a process at constant pressure is equal to enthalpy change.…

Q: Calculate the molality of a solution formed by adding 2.60 g NH,Cl to 19.2 g of water.

A: Molality is a method of expression concentration. It is denoted by  m. molality, m =moles of…

Q: What mass of ethylene glycol (C2H6O2, molar mass = 62.1 g/mol), the main component of antifreeze,…

A: Given -> Molar mass  of ethylene glycol = 62.1 g/mole Volume of water = 8.5 L = 8.5 × 1000 ml =…

Q: At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF) gas in water is 7.9 x 10 -4 M/atm.…

A:

Q: At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF) gas in water is 7.9 x 10 "M/atm.…

A: The correct answer is given below

Q: 2. Order the following compounds by rewriting them from left to right in order of decreasing heat of…

A:

Q: Calculate the final temperature of the resulting solution

A: Use heat conservation method Heat released by neutralization reaction + heat released by Ice(-60 to…

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: At 25.0 °C the Henry's Law constant for helium (He) gas in water is 3.7 × 10¯*M/atm. Calculate the…

A: Given - - > KH = 3.7*10-4 M/atm V = 1425 ml = 1.425 L P = 3.71 atm

Q: Potassium perchlorate (KCIO4) has a lattice energy of -599 kJ/mol and a heat of hydration of -548…

A: Answer: When a salt is dissolved in water energy is absorbed during the break down of salt into its…

Q: The lattice energy and heat of hydration for lithium hydroxide (LiOH) are -1021 kJ/mol and -1044.5…

A: Answer: Heat gained by solution will be: Q=mC∆T Here: Q=heat gainedm=mass of solutionC=heat capcity…

Q: The Henry’s Law constant for N2 in water is 6.41x10^-4 mol/L•atm at 25°C. Calculate the…

A: Henry 's law constant for N2 (kH) = 6.41 × 10-4 mol/(L.atm) Partial pressure of N2 (PN2) = 3.70 atm…

Q: rmine the freezing point of a solution prepared by dissolving 75 g of CaCl2 in 400 g of water,…

A: To determine the freezing point of a solution Formula used  ∆T =Kf ×m∆T is change in temperature…

Q: What is the predicted value of i for NaCl?

A: The van 't Hoff factor is a measure of a solute's effect on colligative qualities such osmotic…

Q: heat absorbed or lost, in J,  by the water = 5.89 j 1.  a. The heat transferred from/to the NH4NO3…

A: a)  Entropy is defined as the measure of disorder or randomness of system entropy. It  is a…

Q: What molality of N a Cl is required to lower the freezing point of water to -12.4 degrees C? Use…

A: Given: Freezing point of water with NaCl solution = -12.4 oC And Kf of water = 1.853 oC/m.

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: How many grams of sucrose (C12H22011) must be added to 597 g of water to give a solution with a…

A:

Q: Calculate the solubility of N, in water when the partial pressure of nitrogen above water is 1.15…

A: Given  partial presure = 1.15 atm Henry law 's constant  = 1.04 ×10-3 mole/L-atm Calculation  of…

Q: Arrange the following compound base on its decreasing solubility in water * А. B. H H H H HHH…

A:

Q: An intravenous glucose (C6H1206) solution is prepared by adding 5.10 g of glucose to 100.0 g of…

A: Mass of glucose = 5.10 g Molar mass of glucose = 180.18 g/mol Moles of glucose =MassMolar mass=5.10…

Q: In a schoool lab, a solution is prepared by dissolving 32.0 g urea, ((NH2)2CO, molar mass = 60…

A: Firstly we use the equation of boiling point elevation , delta Tb = i.Kb.b  Where, i= the van't Hoff…

Q: What is the concentration (in mol/L) of dissolved nitrogen N2 in water in Boone at 22.1°C and…

A: A numerical problem based on Henry's law, which is to be accomplished.

Q: What molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is…

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for…

Q: A 3.03-gram sample of a compound is dissolved in 250. grams of benzene. The freezing point of this…

A: We can use the formula: ΔT = Kf x m where ΔT is the change in freezing point, Kf is the freezing…

Q: 17. NaF (MM = 41.99 g/mol) having a mass of 17.2 g was dissolved in 289 g of chloroform. What is the…

A:

Q: What molality of Na Clis required to lower the freezing point of water to -11.6 degrees C? Use 1.853…

A: Given : freezing point of solution = -11.6 oC Since freezing point of solution = freezing point of…

Q: small.unt of sodium chloride (NaCl) is dissolved in a large amount of water. Imagine separating this…

A: The process by which a solid substance breaks down to corresponding ions is called dissociation.…

Q: What mass of salt (NaCl) should you add to 1.76 L of water in an ice-cream maker to make a solution…

A: Given the freezing point of the solution, Tf = - 13.0 oC.the freezing point of pure water, T0 = 0…

Q: At 25.0 °C the Henry's Law constant for hydrogen sulfide (H, S) gas in water is 0.087M/atm.…

A: According to Henry's law The mass of gas dissolved per unit volume of a solvent is proportional to…

Q: mall amount of acetonitrile (CH3CN) is dissolved in a large amount of water. Imagine separating this…

A: The enthalpy of a solution is defined as the quantity of heat absorbed or liberated when a solute is…

Q: alculate the molality of a solution formed by adding 2.60 g NH4 olality: to 19.1 g of water.

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.