4. (5 pts) When 0.258 g of a molecular compound, benzoic acid, was dissolved in 40.0 g of benzene, the freezing point of the solution was lowered to 5.23 °C. What is the molecular weight of the benzoic acid? Freezing point of pure benzene = 5.46 °Celsius Kf of benzene = 5.12 °C/molal

4. (5 pts) When 0.258 g of a molecular compound, benzoic acid, was dissolved in 40.0 g of benzene, the freezing point of the solution was lowered to 5.23 °C. What is the molecular weight of the benzoic acid? Freezing point of pure benzene = 5.46 °Celsius Kf of benzene = 5.12 °C/molal

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Part 1: Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical…

A: Given data: The cryoscopic constant of water Kf = 1.86°C/m. The normal freezing point of water =…

Q: By how much does the freezing point decrease when 553 g of Na,CO, is dissolved in 750 g of water?…

A: Na2CO3 dissolves in water and breaks in 3 ions of 2 Na+ and CO32-. So the value of i is 3.

Q: (Q74) At what temperature (in °C) will a solution in which 80.56 grams of iron (III) chloride has…

Q: Sodium Lactate, anhyd. Water for Injection ad Ing 560 mg 100 mL The pediatric infusion rate for…

A: Molecular weight of potassium acetate = 98.14g/mol

Q: particular solvent has a freezing point depression constant of 4.16(deg. C/m), what is the molality…

A: Freezing point of solvent is greater than freezing point of solutions

Q: You dissolve 6.31 g of potassium formate in 250 mL of 0.25 M formic acid (HCOOH). This solution was…

A: Given, Mass of KHCO2 = 6.31 g Molar mass of KHCO2 = 84.12 g/mol Molarity of HCOOH = 0.25 M…

Q: (Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,296 grams of water to…

A: The solution is made up of solute and solvent. The solute is present in a small amount and the…

Q: Calculate the osmotic pressure induced if a cell with a total solute concentration of 0.500 moles…

A: Answer: Formula to calculate osmotic pressure is shown below: π=CRT Here: π=osmotic…

Q: (Q61) What is the mole fraction of solvent of a solution in which 2.17 grams of liquid benzene…

A: Given: Mass of benzene = 2.17 g Mass of hexane = 609 g Standard data: The molar mass of benzene =…

Q: Part 1: Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical…

A: Given Kf = 1.86 T1 = 0 T2 = 2.63° C

Q: (Q67) What is the freezing point of a solution made from 883.6 grams of benzene to which 56.0 grams…

Q: 6. A neutralization reaction occurs when 120.00 mL of 0.500 mol/L LIOH and 160.00mL of 0.375 mol/L…

A: 6. Answer : Given that, Volume of LiOH = 120.0 mL Concentration of LiOH = 0.500 mol/L volume of…

Q: Gasoline vaporizes in the carburetor of an automobile engine 2Hg (1) + O₂ (g) --> 2HgO (s)…

A: Given data:Different types of processes are givenMatch each reaction to the change in…

Q: 100.00 mL of 2000ppm NaCI stock solution. -2.0319g of NaCI weighed out What is the exact…

A: To find the exact concentration of the stock solution in %w/v (mass/volume) and molarity (M), we can…

Q: (Q60) Consider a solution in which 20.1 grams of scandium phosphate (SCPO4) has been added to 520…

A: Mole fraction of solvent is the ratio of no.of moles of solvent to the total moles of solution.…

Q: A solution of toluene (C,H,) in 131 g of cyclohexane (C6H₁2) has a boiling point of 90.30 °C. What…

Q: (Q74) At what temperature (in °C) will a solution in which 61.31 grams of iron (III) chloride has…

Q: (Q63) Consider a hydrogen peroxide (H2O2) solution that is 27.7 molal. Given the density of solution…

Q: A solution made by dissolving 173.0 g of an unknown compound in 650.0 mL benzene to make a solution…

A: Depression of freezing point is a colligative property and this is proportional to molality of the…

Q: A partially filled one-gallon [gal] pitcher, that has a mass of 0.35 kilograms [kg] when empty, is…

A: Answer:Given data:

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: Calculate the freezing point of a solution of 367.4 g of ethylene glycol (C2H6O2, 62.067 g/mol)…

Q: Please correct answer and don't use hand rating

Q: (Q61) What is the mole fraction of solvent of a solution in which 2.17 grams of liquid benzene (C6H6…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: For the following reaction: 2 HCI + Ca(OH)2 CaCl₂ + 2 H₂O (1) What is the equivalent mass of…

A: To answer: (1) What is the equivalent mass of Ca(OH)2 _______ g/equiv (2) Calculate the number of…

Q: What is the molecular weight they determined for this compound ?

Q: A solution is prepared by adding 425g of AgNO3 to 0.150L of water at 40.0∘C. The solubility of AgNO3…

A: The solubility of a compound is the dissolution of a solute in the solvent. It is measured in the…

Q: [4.05819 Mass of Urea (g): Buret Initial Volume (mL): water Part 2 Calculation: Final Temperature of…

Question

4. (5 pts) When 0.258 g of a molecular compound, benzoic acid, was dissolved in 40.0 g of
benzene, the freezing point of the solution was lowered to 5.23 °C. What is the molecular weight
of the benzoic acid?
Freezing point of pure benzene = 5.46 °Celsius
Kf of benzene = 5.12 °C/molal

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given Data

VIEW

Step 2: Calculations

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A pharmacist mixes togehter 20 g of crystals of compound A and 10g of crystals of compound B. The mixture is then dissolved in 120mL of water to make cough syrup.
Given: Mass of lauric acid (g): 8.000g Mass of benzoic acid (g): 1.027g Freezing temperature of pure lactic acid(°C): 43.3°C Freezing point of the benzoic acid-lauric acid mixture(°C): 39.8°C m of lauric acid: 1.8m Mols of benzoic acid solute: .0072mol Question: Calculate the experimental molecular weight of benzoic acid, in g/mol.
Calculating molality A student dissolves 13. g of ammonia (NH3) in 175. mL of a solvent with a density of 0.98 g/mL. The student notices that the volume of the solvent does not change when the ammonia dissolves in it. Calculate the molarity and molality of the student's solution. Round both of your answers to 2 significant digits. molarity = 0 = 0 molality Explanation Check x10 믐 X 8 0x0 S 0/5 MacBook Pro Val 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility
(Q67) What is the freezing point of a solution made from 771.4 grams of benzene to which 42.4 grams of the nonelectrolyte cycloheptene (C7H12) has been added? (Report freezing temperature to the hundredths place - two decimal places)
what is the answer for part d
(Q67) What is the freezing point of a solution made from 644.6 grams of benzene to which 45.7 grams of the nonelectrolyte cycloheptene (C7H12) has been added? (Report freezing temperature to the hundredths place - two decimal places)
20.8 grams of Ammonia (NH3) are dissolved in 1.17kg of water. What is the new boiling point of the solution? (0.512 C/m)
(Q74) At what temperature (in °C) will a solution in which 88.37 grams of iron (III) chloride has been added to 1,054 grams of water boil? The boiling point of water is 100.00°C. You should use the experimental value of the van't Hoff factor for this calculation. (5 sf)
A student mixes 20 grams of KClO3 with 100 grams of water and then determines the freezing point of this mixture. Given the Kf for water is 1.86oC/m, what is the freezing point of the student’s solution? Answer: -120.1 Can I get the step-by-step solution?