Answered: 50.0 g of methanol (CH3OH, molecular…

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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50.0 g of methanol (CH3OH, molecular mass = 32.04 g/mol) is dissolved to make 500.0 mL of solution. What is the molarity, mol/L, of the resulting solution?

Would that be?

32.04/.50 = 64.08

Expert Solution

Step 1 Molarity

Given, mass of methanol = 50 g

Molar mass of methanol = 32.04 g/mol

Volume of solution = 500 ml or 0.5 ltr

Molarity = $\frac{n o . o f m o l e s o f s o l u t e}{V o l u m e o f s o l u t i o n (l t r)}$

Molarity = $\frac{50 / 32.04}{500 / 1000}$

= $\frac{1.56}{0.5}$ = 3.12 M

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