3 years ago

If a 40 g sample of NaCl is composed of 39.34% Sodium, how many grams of that sample are Sodium?

Chemistry

1 answer:

alina1380 [7]3 years ago

4 0

Answer:

15.7g

Explanation:

mass percent=mass of element/mass of compound *100

39.34=unknown(x)/40g×100

39.34=5x/2

multiplying both sides by 2,we get

5x=78.68

devide by 5 on both sides

x=15.74g Na

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