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Calculate the mass (g) of solid potassium carbonate (K_2CO_3) needed to prepare 20 mL of a 1.0 M...

Question:

Calculate the mass (g) of solid potassium carbonate ({eq}K_2CO_3 {/eq}) needed to prepare 20 mL of a 1.0 M potassium carbonate solution.

Salt:

The term salt in chemistry refers to any molecule formed from electrostatic (ionic) bonds. Therefore, potassium carbonate, because it is an ionic molecule between the potassium cation and carbonate anion, can be generically called a salt.

Answer and Explanation: 1

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The molar concentration {eq}C {/eq} is equal to the moles of solute {eq}n {/eq} divided by the volume {eq}V {/eq} of the solution in liters:

{eq}C =...

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Calculating Molarity and Molality Concentration

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


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