A solution containing 10.0 g of an unknown nonelectrolyte solute and 90.0 g water has a freezing point of -3.33 °C. Given Kf = 1.86oC/m for water, the molar mass of the unknown solute is  ______.   A. 69.0 B. 333 C. 619 D. 161 E. 62.1

Q: A student dissolves 11. g of glucose (C6H1206) in 175. mL of a solvent with a density of 0.94 g/mL.…

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Q: A solution is made by dissolving 6.26g NAOH in 25.2g water. 19. What is the number of moles of…

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Q: Potassium is often mixed with saline in IV drips. You prepare a solution by diluting 250 mL of a 2.6…

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

Q: A certain liquid X has a normal freezing point of 0 °C and a freezing point depression constant K, =…

A: Given: Normal freezing point of solvent i.e. X = 0.0 oC Kf of X = 7.44 oC/m. Mass of C7H7NO…

Q: Substance GAMMA has a vapor pressure of 318 torr at 19 °C. When a sample of the nonvolatile…

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Q: The freezing point of a CaCl2 solution is -19 ∘C Part A What is the molality (m) of the CaCl2…

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Q: A student needs to prepare 50.0 mL50.0 mL of a 0.80 M0.80 M aqueous H2O2H2O2 solution. Calculate the…

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Q: A 1:25 dilution is done with a 10.0 ppb solution. What is the concentration of the diluted solution…

A: Given that, 1:25 dilution of 10.0 ppb solution. Concentration of diluted solution?

Q: MISSED THIS? Read Section 14.7 (Pages 613 - 616). Calculate the melting point of a 0.114 m iron(IIl)…

A: Colligative property are the property which depends upon the number of particles. Higher the number…

Q: A scientist, experimenting with liquid X, adds enough sucrose (non-volatile, non-electrolyte) to…

A: Depression in freezing point of solution = Freezing point of pure solvent – freezing point of…

Q: Menthol is a crystalline substance with a peppermint taste and odor. When 1.54 g of menthol is…

A: ∆Tf = Kf x molality Molality = Number of moles of solute/Mass of solvent in kg Number of moles =…

Q: What volume of 0.15 N HCl is needed to neutralise 20.0mL of a 0.35 N NaOH solution? A. 46.67 mL B.…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: Determine the solubility (molarity) of gas X in water at 25 degrees C exposed in air at a pressure…

A: Henry’s law describes the solubility of gases in relation to its partial pressure. The law is given…

Q: Pure

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Q: Menthol is a crystalline substance with a peppermint taste and odor. When 1.52 g of menthol is…

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Q: A Mixture Contains 1.5 Liters Oxalic Acid H2C204 2H2O (p=1.653 g/mL) and 2- gallon Water. Determine:…

A: The mixture contains 1.5 L oxalic acid in 2-gallon water. 2-gallon water=2×3.78541 L=7.57082 L

Q: A solution is prepared by dissolving 78.5 g of NaCl and 889 g water to make a total solution volume…

A: Given data,Mass of NaCl=78.5gMass of water=889g=0.889kgvolume of solution=925mL=0.925L

Q: The freezing point of CuSO4 solution was determined to be -0.97c. Determine the moles of CuSO4, if…

A: We know that molal depression constant of water = Kf = 1.86 K kg mol-1 Given that, the freezing…

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of sodium phosphate (163.9…

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Q: A certain liquid X has a normal freezing point of 3.30°C and a freezing point depression constant…

A: We know that, depression in freezing point is given by,                                       ΔTf =…

Q: The freezing point of water H2O is 0.00°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: The depression in the freezing point is a colligative property and it is directly proportional to…

Q: 48- A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water, the density of resulting…

A: Molality is defined as numbers of moles of solute divided by mass of solvent in kg .

Q: What is the boiling point of a solution, in °C formed by dissolving 19.1 grams of KBr in 25.0 mL of…

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Q: Which of the following BEST describes colligative properties of solutions? A. depend on the…

A: Which of the following BEST describes the colligative properties of solutions has to be given.

Q: When a 49.0-g sample of an unknown compound is dissolved in 500.g of benzene, the freezing point of…

A: Given,  Mass of unknown sample = 49.0 g Mass of benzene solvent = 500.0 g = 0.5 Kg Freezing point of…

Q: Determine the percent by mass of MgCl2 if 3.1 g of MgCl2 is dissolved in 41.1 g of water.

A: Calculate total mass of solution:

Q: In the northeastern United States during freezing temperatures, CaCl2 is spread on icy highways to…

A: We know that ∆Tf = kf × m × i

Q: Calculate the freezing point of a solution

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Q: c) Calculate the freezing point of a solution containing 6.0 %% KCl by mass (in water). d)…

A: Answer:- This question is answered by using the simple concept of depression in freezing point and…

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

A: Given: Mass of NaF = 17.2 g. Mass of chloroform i.e. solvent = 289 g = 0.289 Kg…

Q: A scientist, experimenting with liquid X, adds enough sucrose (non-volatile, non-electrolyte) to…

A: ★ Answer : 150.61 g of glucose is needed. ★ Solution :

Q: What volume of water at 20.0 C (d 0.9982 g cm3) is needed to dissolve 33.3 g of sucrose to make a…

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

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Q: Of the following, which will increase the solubility of a gas in water? (a). increasing the…

A: #Q.1: The solubility of a gas in water depends on the nature of the solute, temperature, and partial…

Q: A certain liquid X has a normal freezing point of -6.90 °C and a freezing point depression constant…

A: We have to predict the freezing point of solution.

Q: Calculate the molality of a solution prepared by dissolving 135 grams of copper(II) sulfate (FW…

A: Solution - Molality - Molality is a measure of the number of moles of solute in a solution…

Q: A sucrose solution is prepared to a final concentration of 0.300 M . Convert this value into terms…

A: Molarity = number of moles / volume in liter

Q: The freezing point of a 0.010 m electrolyte solution in water is -0.o54 ºC. What is the boiling…

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Q: A concentrated potassium hydroxide solution is 45.0% KOH by mass and has a density of 1.44 g/ml at…

A: In order to find out the amount of KOH present in 1 L of a KOH solution, first, find out the mass of…

Q: What volume of solution( mL) is required to prepare a 2.28 M solution with 37 g of K2SO4 (MM = 174.3…

A: Given: The molarity of the K2SO4 solution = 2.28 M The mass of K2SO4 = 37 g The molar mass of K2SO4…

Q: A colligative property a. only occurs in aqueous solutions b. depends only on the concentration of…

A: Properties of a solution that depend only on the concentration of solute particles are called…

Q: 2. When 3 g of an unknown solute is dissolved in 50 g of benzene, the resulting solution has a…

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Q: Question is attached

A: The freezing point depression for non-electrolyte solute can be calculated by the formula:  ∆Tf =…

Q: How many milliliters (mL) of a 5.25% (w/v) HCl solution must be used to prepare 240 mL of a 0.175%…

A: Given that: Concentration of stock HCl(C1) = 5.25%(w/V) Concentration of final HCl solution(C2) =…

Q: A solution is made using 190.5 g of hexane (MM = 86.18 g/ mol) and 200.0 g of octane (MM = 114.2…

A: The concentration of a solution is expressed as molality, which is denoted as m and it measures…

Q: Menthol is a crystalline substance with a peppermint taste and odor. When 1.18 g of menthol is…

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Q: 100 90 NANO 80 70 Cac Pb(NO), 60 50 40 KCI NaCI 30 20 KCIO, 10 Ce,(SO,), 10 20 30 40 50 60 70 80 90…

A: Above question can be easily solved by looking this graph at 10 degree celcius.

Q: A 70% sulfuric acid solution has a density of 1.326 g/cm3.  Find the molarity of the solution in…

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Q: Given the amount of solute and solvent, calculate the concentration. a) Percent weight to weight is…

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Q: A. Determination of the Freezing Point of Cyclohexane. N/A 1. Mass of test tube, beaker and…

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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.