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Gekata [30.6K]
3 years ago
6

What is the mass concentration in ppm of NaCl of 0.01% mass/mass

Chemistry
1 answer:
Andreas93 [3]3 years ago
8 0

Answer:

B-100

Explanation:

ppm is an unit of concentration that could be defined as the mass in mg of solute (In this case, NaCl) per kg of solution.

Now, a solution of NaCl that is 0.01% by mass, contains 0.01g of NaCl in 100g of solution.

To solve this question, we must convert the mass of NaCl to mg and the mass of solution to kg:

<em>Mass NaCl:</em>

0.01g * (1000mg / 1g) = 10mg

<em>Mass Solution:</em>

100g * (1kg / 1000g) = 0.10kg

The ppm are:

10mg / 0.10kg =

100ppm

Right answer is:

<h3>B-100 </h3>
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