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# A soft drink contains 32 mg of sodium in 309 g of H2O.

ISBN: 9780321910295 34

## Solution for problem 44P Chapter 13

Introductory Chemistry | 5th Edition

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Problem 44P

A soft drink contains 32 mg of sodium in 309 g of H2O. What is the concentration of sodium in the soft drink in mass percent?

Step-by-Step Solution:

Solution 44P :

Step 1:

Given :

A soft drink contains 32 mg of sodium in 309 g of H2O.

concentration of sodium in the soft drink in mass percent = ?

Here, solute = sodium and solvent = water.

Amount of solute = 32 mg

Amount of solvent = 309 g

Formula to find mass percent :

Mass percent =  100 %

Here, the amount of solute, sodium (Na) is given in mg, so let’s convert to g :

1 g = 1000 mg

Hence 32 mg in g will be :

= 32 mg

= 0.032 g.

Step 2 of 2

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