What is the molarity of a solution that contains 0.800 moles KOH in 0.35 L of solution?

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section: Chapter Questions
Problem 71A
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What is the molarity of a solution that contains 0.800 moles KOH in 0.35 L of solution?

Expert Solution
Step 1-concept

Molarity is defined as the concentration of a solution expressed as the number of moles of solute per litre of the solution.

So,

Molarity = Number of moles of solute/Volume of the solution (L)

M = n/V(in L)

Step 2- calculation

We have the formula,

M = n/V

Where,

n = 0.800 moles

V = 0.35 L

So,

M = 0.800/0.35 = 2.29 M

 

 

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