200.0g of a 3.0% NaF solution, how much distilled water do we weigh out? 197g of distilled water
194g of distilled water
140g of distilled water
170g of distilled water

194g of distilled water.

Explanation:

Hello there!

In this case, according to the given information for this problem, it turns out possible for us to use the given mass of the solution and the percent by mass of NaF to firstly calculate the grams of this solute as shown below:

And finally, since the mass of solution is calculated by adding mass of solute and mass of solvent we obtain the mass of water (solvent) as follows:

Therefore, the answer is 194g of distilled water

Regards!

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a is the answer to this question

explanation: