**Topic: Solution Composition and Concentration Calculation****Introduction:**We are given the following information for a chemical solution problem:- The density of acetonitrile (CH₃CN) is 0.786 g/mL.- The density of methanol (CH₃OH) is 0.79 g/mL.- A solution is made by dissolving 22.5 mL of CH₃OH in 98.7 mL of CH₃CN.**Questions:**(a) What is the mole fraction of methanol in the solution?(b) What is the molality of the solution?(c) Assuming that the solution is additive, what is the molarity of CH₃OH in the solution?(d) What is the mass percent of the solution?**Graphs/Diagrams:**This document does not include any graphs or diagrams. It is focused on a textual problem set related to solution chemistry.

Given,volume of methanol ( CH3OH ) = 22.5 mLdensity of methanol = 0.79 g/mLvolume of acetonitrile (…

CH3CN The density of acetonitrile is 0.786g/mL is 0.79g/ml. A solution is made by dissolving in 98.7mL CH3CN. CH3OM the density of methanol 22.5 ml CH3 OM 1 (a) What is the mole fraction of (6) What is the molality of the solution? (c) Assuming that the solution is additive. What is the molarity of CH3OH in methanol in the solution? the solution? (d) what is the mass ./. of the solution?

CH3CN The density of acetonitrile is 0.786g/mL is 0.79g/ml. A solution is made by dissolving in 98.7mL CH3CN. CH3OM the density of methanol 22.5 ml CH3 OM 1 (a) What is the mole fraction of (6) What is the molality of the solution? (c) Assuming that the solution is additive. What is the molarity of CH3OH in methanol in the solution? the solution? (d) what is the mass ./. of the solution?

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...

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Concept explainers

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.

Question

**Topic: Solution Composition and Concentration Calculation**

**Introduction:**

We are given the following information for a chemical solution problem:

- The density of acetonitrile (CH₃CN) is 0.786 g/mL.
- The density of methanol (CH₃OH) is 0.79 g/mL.
- A solution is made by dissolving 22.5 mL of CH₃OH in 98.7 mL of CH₃CN.

**Questions:**

(a) What is the mole fraction of methanol in the solution?

(b) What is the molality of the solution?

(c) Assuming that the solution is additive, what is the molarity of CH₃OH in the solution?

(d) What is the mass percent of the solution?

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This document does not include any graphs or diagrams. It is focused on a textual problem set related to solution chemistry.

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Step 1: Determine the mole fraction, molality , Molarity and % by mass of the solution from the data:

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Step 2: a) Calculation for mole fraction of the solution:

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Step 3: b) Calculation for molality of the solution:

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Step 4: c) Calculation for molarity of methanol in the solution:

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Step 5: d) Calculation for mass percent of the solution:

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