Question 1

Which of the following is the correct formula for ammonium sulfate?

Accepted Answer

$$\mathrm{(NH_4$)_2SO_4}$$

Question 2

What is the correct name for the compound with the formula $$\mathrm{Na_2CO_3}$$?

Accepted Answer

Sodium carbonate

Question 3

Which of the following compounds contains the nitrate ion?

Accepted Answer

$$\mathrm{$$NaNO_3$$}$$

Question 4

A sample of $$92.3\ \mathrm{g} of a $$hydrate of aluminum chloride is found to contain $$27.0\ \mathrm{g} of $$water. What is the formula of the hydrate? (Molar mass of $$\mathrm{$$AlCl_3$$} = 133.5\ \mathrm{g/mol}$$, $$\mathrm{H_2O} = 18.0\ \mathrm{g/mol})$$

Accepted Answer

$$\mathrm{$$AlCl_3$$ \cdot 3H_2O}$$

Question 5

Which of the following is the correct formula for iron(III) phosphate?

Accepted Answer

$$\mathrm{$$FePO_4$$}$$

Question 6

What is the correct name for $$\mathrm{K_2SO_4}$$?

Accepted Answer

Potassium sulfate

Question 7

Which of the following is the correct formula for copper(II) sulfate?

Accepted Answer

$$\mathrm{$$CuSO_4$$}$$

Question 8

Which of the following ions would combine with $$\mathrm{PO_4$^{3-}} to $$form a neutral compound?

Accepted Answer

$$\mathrm{Fe$$^{3+}$$}$$

Question 9

Which of the following is the correct name for $$\mathrm{$$NaHCO_3$$}$$?

Accepted Answer

Sodium bicarbonate

Question 10

A compound contains $$39.1\%$$ sodium, $$13.4\%$$ carbon, and $$47.5\%$$ oxygen by mass. What is the empirical formula of this compound?

Accepted Answer

$$\mathrm{Na_2CO_3}$$

Question 11

Which of the following is the correct formula for ammonium phosphate?

Accepted Answer

$$\mathrm{(NH_4$)_3PO_4}$$

Question 12

Which of the following is the correct name for $$\mathrm{Fe_2$(SO_4$)_3}$$?

Accepted Answer

Iron(III) sulfate

Question 13

Which of the following is the correct formula for sodium acetate?

Accepted Answer

$$\mathrm{CH_3COONa}$$

Question 14

Which of the following is the correct name for $$\mathrm{NaOH}$$?

Accepted Answer

Sodium hydroxide

Question 15

Which of the following is the correct formula for calcium phosphate?

Accepted Answer

$$\mathrm{Ca_3$(PO_4$)_2}$$

General Chemistry: Naming Compounds, Writing Formulas, and Hydrate Calculations

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