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Percent Composition/Empirical Formula Practice

Last updated 2 days ago

7 questions

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Question 1

1.

What is the percent composition of N in ammonium sulfide? (Round to 4 sig figs)

Question 2

2.

What is the percent composition of H in ammonium sulfide? (Round to 4 sig figs)

Question 3

3.

What is the percent composition of S in ammonium sulfide? (Round to 4 sig figs)

Question 4

4.

What is the percent composition of N in dinitrogen disulfide? (Round to 4 sig figs)

Question 5

5.

What is the percent composition of S in dinitrogen disulfide? (Round to 4 sig figs)

Question 6

6.

An unknown compound is composed of 68.4% chromium and 31.6% oxygen. What is the empirical formula?

Question 7

7.

An unknown compound is found to be composed of 29.84 g sodium, 67.49 g chromium, and 72.67 g oxygen. What is the empirical formula?