Q.3. A solution is made by dissolving 64. 8 g of an unknown compound in 300ml of water at 23°C. The freezing point of water now reads at -3.50°C. a) Calculate the molar mass of the unknown compound. (Kf of water is 1.86°C/m); b) Calculate boiling point of the same solution given Kh of water 0.52°C/m. The density of water at 23°C is 0.9987g/ml.

Q: Calculate the freezing point of a solution containing 50.0 g pf NaCI in 5000mL of water. Kf for…

A: Given in the question, Mass of solvent = 5000g = 5 kg Mass of solute = 50g Molar Mass of solute =…

Q: The freezing point of ethanol is -114.6°C. The molal freezing point depression constant for ethanol…

A: Freezing point of ethanol = =-114.6 °C molal freezing point depression constant = 2.00 °Cm mass of…

Q: What is the freezing point of a solution with 1.09 mol of CHCl3 in 530.0 g of CCl4 (kf=29.8…

A: Given, moles of CHCl3 = 1.09 mol            mass of solvent CCl4 = 530.0 g = 0.530 kg We know that,…

Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to…

A:

Q: What is meant by the following statement (the freezing point decrease constant of water is 1.86 C.…

A: When a non volatile solute is added to a solute is added to a solvent like water, its freezing point…

Q: 3. A 5.00 gram sample of lauryl alcohol is dissolved in 100 g of benzene (k,-5.10 °C/m). The normal…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A student prepared a sugar solution containing 7.5345 g of sugar (C12H22011, 342.29 g/mol) in 25.00…

A: Answer:For a non-electrolyte and non-volatile solute, depression in freezing point of solution is:

Q: If 2.51 g of a molecular compound  dissolved in 100.0 g of water produces a solution with a freezing…

A: When a solute is added to a solvent, the freezing point of solvent decreases known as depression in…

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

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

Q: 3. A 5.00 gram sample of lauryl alcohol is dissolved in 100 g of benzene (k,=5.10 °C/m). The normal…

A:

Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C?

A: given data : Kf of water = 1.86 °C/m  Freezing point of water = 0°C  ∆Tf = 0-(-2.00) = 2.00°C  Mass…

Q: Sucrose (C12H22011) is a nonelectrolyte. A solution is prepared by dissolving 68.5 g sucrose in…

A: Given : Mass of sucrose = 68.5 g Volume of H2O = 250.0 mL And density of solution = 1.06 g/mL Since…

Q: How many grams of KNO, (101.10g mol ") must be added to 102 g water to produce a boiling point…

A: Each solution possesses particular boiling point and also freezing point. The increment/elevation in…

Q: 1) A solution containing 10.0 g of an unknown molecular liquid and 90.0 g water has a freezing point…

A:

Q: What is the freezing point of the solution?

A: ∆Tf = iKfm   ∆Tf is the depression in freezing point   i is the Van't hoff factor  Kf is the molal…

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

A: Given, The freezing point of the pure water, (T0f)=0.0 0C. The given mass of water, (Wa)=242 g=0.242…

Q: The freezing point of CCl4 is -22.92°C. Calculate the freezing point of the solution prepared by…

A: The molar mass of pyrazine is 80.09 g/mol. The number of moles of pyrazine is calculated below.

Q: What is the freezing point, in \deg C, of a solution made with 1.15 mol of CHCI, in 530.0 g of CCI,…

A: Given data , Moles of CHCl3 = 1.15 moles for CHCl3 van't Hoff factor (i) = 1Mass of solvent (CCl4) =…

Q: 1. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: 16.) An aqueous solution of a nonvolatile solute has a boiling point of 101.9°C. Calculate the…

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

Q: 3. Calcium chloride is used on roads and sidewalks to prevent ice formation durin wintertime.…

A:

Q: A 1.5 g sample of a mixture of naphthalene (C1,H3) and anthracene (C14H10) is dissolved in 20.0g of…

A: Given :-  Mass of Benzene, C6H6 (solvent) = W1 = 20.0 g = 20.0 × 10-3 (kg) Mass of mixture of…

Q: Calculate the freezing point (oC) of a solution of 15.46 g of acetone (CH3COCH3, MM = 58.08 g/mol)…

A: Answer: The freezing point of the solution is - 116 °C. Option f. -116 is the correct answer.

Q: The boiling point of an aqueous solution is 101.12 ∘C. What is the freezing point?   Kb value: .512…

A:

Q: A solution is prepared by dissolving 2.00 g of glycerin (C3H8O3) in 201 g of ethanol (C2H5OH). The…

A:

Q: Glucose (CalOs) is a nonelectrolyte. A solution is prepared by dssolving 72.1g glucose in so0.0 mL.…

A: Given : Mass of sucrose = 72.1 g Volume of H2O = 500.0 mL = 0.500 L…

Q: A solution is prepared by dissolving 215 grams of methanol, CH3OH, in 1000. grams of water. What is…

A: Freezing point depression: The Freezing point of the solution is diereses than pure solvent so the…

Q: 147.5 g of an unknown molecular compound is added to 50o.0 mL of water. The freezing point of the…

A: A numerical problem based on colligative property, which is to be accomplished.

Q: Alcohols are organic compounds which are soluble in water, but are nonelec- trolytes. If a 6.247 g…

A:

Q: If 2.51 g of a molecular compound  dissolved in 100.0 g of water produces a solution with a freezing…

A: Given data:

Q: An antifreeze solution contains 1.00 kg of ethylene glycol (C2H6O2; molar mass = 62.07 g/mol) in…

A:

Q: How many moles of C,H,O were dissolved into 91.340 g of ethylene glycol, if the freezing point of…

A:

Q: Calculate the vapor pressure of ethanol, CH3CH2OH, in a water solution containing 70.0% ethanol by…

A:

Q: How many grams of sodium acetate (MM=105.99) would you add to 500.0 g water to produce a freezing…

A: Using the freezing point depression formula ∆Tf = i×Kf×mi = van't hoff factor∆Tf = freezing point…

Q: A research chemist isolates a new compound containing C, H and 0. A conductivity measurement showed…

A: Given Compound contain 55% C 7%H and 37.2% O. 9.19 g mass of compound dissolve in 100 g of water.…

Q: The freezing point of ethanol CH3 CH₂ OH is -117.30 °C at 1 atmosphere. A nonvolatile,…

A:

Q: When 86 g of a nonelectrolyte compound are dissolved in exactly 76 g of water, the solution has a…

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.