The vapor pressure of pure water at 95°C is normally 633.9 mmHg, but decreased to 610.1 mmHg upon addition of an unknown amount of potassium hydroxide, KOH, to 289.0 g of water at this temperature. How many grams of potassium hydroxide were added? Assume complete dissociation of solute.

Q: From the following list of aqueous solutions and water, select the one with the lowest freezing…

A: Since all the solutions given are aqueous solution. Hence the solvent is water in all solutions.…

Q: Calculate the freezing temperature of the following solution of 0.50 M sodium chloride (an ionic…

A: Molality of NaCl = 0.5 m The equation along with vant Hoff factor -  NaClaq ⇔Na+ aq+ Cl-aqi value…

Q: Calculate the mass percent of a NaCl solution prepared by mixing 20.8 g NaCl with 586 g of pure…

A:

Q: What is the vapor pressure of solution made by adding 52.9 g of CuCl2, a strong electrolyte, to…

A: Vapour pressure is defined as a tendency of a material to converts into th1e gaseous or vapour…

Q: Potassium nitrate has a lattice energy of – 163.8 kcal/mol and a heat of hydration of -155.5…

A: To solve the question, we need to convert the energy from kcal to kJ.  ∆Hlattice=-163.8 kcal1…

Q: Consider two solutions, one formed by adding 10 g of glucose 1C6H12O62 to 1 L of water and the other…

A: For the first solution, to calculate the vapor pressure, we need to calculate the mole fraction of…

Q: Calculate the molality, molarity, and mole fraction of FeCl3 in a 28.8 mass % aqueous solution (d =…

A: Given  density of solution : d = 1.280 g/mL mass % of FeCl3 in solution = 28.8 % Take 1.0 L (or 1000…

Q: Define solute, solvent, and solution. Give three characteristics of a solution.

A: A solution can be prepared by the addition of a solute in a solvent. When the solute is soluble in…

Q: What is the boiling point of a 2 m solution of LiF in water? (The boiling point elevation constant,…

A:

Q: An aqueous CaCl2 solution has a vapor pressure of 81.6 mmHg at 50 °C. The vapor pressure of pure…

A: Given information: Vapor pressure of solution = 81.6 mmHg Vapor pressure of pure water = 92.6 mmHg

Q: Without doing detailed calculations, determine which of the following aqueous solutions has the…

A:

Q: What is the freezing point and boiling point of an aqueous solution of LiCl that contains 2.58g of…

A: Given; Mass of LiCl = 2.58 g And volume of solvent i.e water = 10 mL Hence mass of solvent i.e water…

Q: Which of the following will have the lowest freezing point? a. aqueous KF (0.25m) b. aqueous…

A: A colligative properties are property of solution which depend on the number of particles not on the…

Q: Use the References to access important values if needed for this question. Match the solutions to…

A: Higher the concentration of ions/molecule smaller will be the freezing point

Q: Calculate the vapor pressure of an aqueous solution when 164 g of glycerin, (Mr. 92.0 g/mol) is…

A:

Q: Explain dynamic equilibrium with respect to solution formation. What is a saturated solution? An…

A: The dynamic equilibrium with respect to solution formation is to be explained. A saturated solution,…

Q: Calculate the molality of a solution prepared by dissolving 12.1 g of CH3OH in 475 g of water O 2.40…

A: Mass of CH3OH = 12.1 g  Mass of water = 475 g  Molality of the solution = ?

Q: Calculate the freezing point of a solution of 25 mL of CH3OH (d = 0.792 g/mL) in 325 mL of water (d…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: The vapor pressure of pure water at 85°C is 434 torr. What is the vapor pressure at 85°C of a…

A:

Q: At what temperature does a 2.00 m NaCl(aq) solution freeze at (assuming ideal behavior

A: Given: Molality of NaCl solilution. = 2.00m = 2.00mol/kg   van’t Hoff factor for NaCl  i=2 We know,…

Q: Put these aqueous solutions in order of decreasing freezing point. highest freezing point 1 E 0.1 m…

A: ∆Tf = im Kf  m is molality  Kf is constant  m is molality ∆Tf is depression in freezing point. i is…

Q: A sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of…

A:

Q: At 20°C, the vapor pressure of pure ethanol, C2H5OH, is 43.7 mmHg and the vapor pressure of pure…

A: Given that , Vapour pressure of the solution= 28.6 mmHg Vapour pressure of pure ethanol = 43.7 mmHg…

Q: A 1.09 g sample of substance X is dissolved in 26.8 g of benzene. The freezing point of the solution…

A: The ratio of moles of solute to the mass of the solvent in kg is known as molality.

Q: (1)What is solution? (2)What is mixture? (3)What is suspension? (4)What is colloidal solution?

A:

Q: Calculate the molarity of 1.55 mole of NH4C2H3O2 in 1.00L of solution

A: Given:   Moles of NH4C2H3O2 = 1.55 mol    Volume=1.00 L

Q: The vapor pressure of pure water at 70°C is normally 233.7 mmHg, but decreased to 227.4 mmHg upon…

A: Given: Amount of water taken, WA = 242.9 g Vapor pressure of pure water, PA° = 233.7 mm Hg Vapor…

Q: Calculate the volume of 30.0 % (v/v) isopropyl alcohol in water to form exactly 500 mL of solution.

A: Since % (v/v) is defined as  % (v/v) = volume of solute X 100 / volume of solution

Q: Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5…

A:

Q: The density of an aqueous solution that is 13.2% by mass of XY ( molar mass 56.8 g/mol ) is 1.10 g/…

A:

Q: Calculate the freezing point of a 0,10 m aqueous solution of AlCl

A: This is the question of solution which is form when solute is mixed with solvent.

Q: 10.00 g NaCl is dissolved in 90.00 mL of water. Calculate the percent by mass-volume of the…

A: Given data - The mass of NaCl = 10.00g The volume of solution = 90 ml To calculate = m/V % of…

Q: A solution of 1.25 g of a certain non-electrolyte in 20 g of water freezes at 271.95 K. Calculate…

A:

Q: When a 33.8-g sample of an unknown compound is dissolved in 500. g of benzene, the freezing point of…

A: Given: Mass of unknown compound = 33.8 g Mass of benzene = 500 Freezing point of the solution =…

Q: What is the basis in the simplified determination of the van't Hoff factor of electrolytes? O…

A:

Q: Which aqueous solution will have the lowest freezing point? ATf = Kf m i a. 0.05 m MgCl2 b. 0.05 m…

A: Depression in freezing point is given by:

Q: The vapor pressure of pure water at 85° C is 434 torr. What is the vapor pressure at 85° C of a…

A: The vapour  pressure of the solution containing non-volatile solute can be determined by using the…

Q: Of all the following aqueous solutions, which one will have the lowest freezing point? Why? 1. 0.200…

A: Depression in freezing point is given by:

Q: Identify the solutions as saturated or supersaturated. Solubility information is given in the table.…

A: 1. Solubility of sucrose at 0 °C = 179.2 g sucorse /100 g of water = 1.792 g/1 g of water Cone, of…

Q: 22.7 g of an unknown molecular solute is dissolved in 4.11 moles of phenol (C6H6O), causing the…

A: Using the formula of depression of Freezin point :∆Tf = kf x W2/M2W1/1000or ∆Tf = kf x…

Q: Calculate approximately the freezing point of the 0.600 M NaCl aqueous density of pure water around…

A: Welcome to bartleby !

Q: Why does the solubility of most gases in most liquids increase with decreasing temperature?

A: More is the temperature of gas, more will be the kinetic energy of gases. Hence decreasing the…

Q: The freezing point of pure benzene is 5.50 °C , and its Kp is –5.12 °C. kg. mol-1. A 0.546 g sample…

A:

Q: The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is…

A:

Q: Calculate the molality, molarity, and mole fraction of FeCl₃ in a 28.8 mass % aqueous solution…

A: Molarity is equal to the number of moles of solute dissolved per liter of solution. It is denoted by…

Q: How many grams of NaOH must be added to 300ml of water at 48°C to have a solution whose vapor…

A: Given : Volume of NaOH = 300ml Vapor pressure of solution = 78torr. Vapor pressure of water = 83.7…

Q: Calculate the molality of a solution formed by adding 9.10 g NH,Cl to 16.0 g of water.

A: Given: Mass of NH4Cl = 9.10 g Mass of water = 16.0 g Standard data: The molar mass of NH4Cl =…

Q: Water has a Kf of -1.86 °C/m. Calculate the new freezing point of an aqueous solution made by mixing…

A: Given :-  Kf of water = 1.86 °C/m  Mass of water = 28.85 g  Mass of MgCl2 = 1.84 g  To calculate :-…

Q: 7. A concentrated phosphoric acid solution contains 85% by mass of H3PO4. Calculate the molality of…

A: We need to calculate the molality of given phosphoric acid using mass percentage.

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.