How many grams of potassium carbonate are needed to make {eq}0.200\ L {/eq} of a {eq}2.50\ M {/eq} solution?

## Question:

How many grams of potassium carbonate are needed to make {eq}0.200\ L {/eq} of a {eq}2.50\ M {/eq} solution?

## Solution Preparation:

To prepare a solution, we must first know the desired volume and concentration. With this, we must make use of the molar mass in order to correctly determine how much of the reagent must be weighed. We use the molar mass in order to determine the mass from the required number of moles we must have.

## Answer and Explanation: 1

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View this answerDetermine the mass of {eq}\displaystyle K_2CO_3 {/eq} by determining the number of moles, {eq}\displaystyle n {/eq}, in the given solution and then...

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Chapter 8 / Lesson 4What is molarity? What is molality? Compare molarity vs molality by viewing molality and molarity formulas, how to calculate molarity and molality, and examples.