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3 years ago

Answer true or false. A 163 g solution containing 8.0 mg of NaCl is 49 ppm. O True O False

Chemistry

1 answer:

beks73 [17]3 years ago

6 0

Answer:

True

Explanation:

The unit ppm is parts per million.

In grams that is:

grams of solute in 1,000,000 grams of solution

Here, the solute is 8.0mg of NaCl. That is 0.0080g.

The solution is 163 g.

Then, set a proportion:

0.0080g NaCl / 163g solution = x / 1,000,000g solution

x = 1,000,000 g solution × 0.0080g NaCl / 163g solution

x = 49.08 ppm

Round to two significant figures = 49 ppm ← answer

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