# A chemist prepared a solution by dissolving 52.0 g of hydrated sodium carbonate in the water to a...

## Question:

A chemist prepared a solution by dissolving 52.0 *g* of hydrated sodium carbonate in the water to a total volume of 5.00 {eq}dm^3
{/eq}. The concentration was determined to be 0.0366 *M*. Determine the formula of the hydrated sodium carbonate.

## Hydrates

Some ionic compounds include water molecules in their structure. These are called hydrates. To find the hydration number (the moles of water per mole of salt), you can heat the solid to drive off the water, and then compare the masses before and after to find the mass of the escaped water. You can also determine the hydration number by dissolving the solid and finding the concentration of its ions, if you can assume that there is little enough water in the solid that the overall volume won't be affected.

## Answer and Explanation: 1

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View this answerThe mass of hydrate is dissolved in 5.00 L of water, and forms a solution with a known concentration. From this, we can find the moles of sodium...

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Chapter 9 / Lesson 8Learn the anhydrate definition and what a hydrated compound is. Understand what an anhydrate is, the hydrate formula, and how to find the formula of the hydrate.

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