Empirical Formula Practice

A compound is composed of 12 grams of carbon (C), 2 grams of hydrogen (H), and 32 grams of oxygen (O). Determine the empirical formula. (Atomic mass of C = 12 g/mol, H = 1 g/mol, O = 16 g/mol)

• CHO

A compound contains 28 grams of nitrogen (N) and 64 grams of oxygen (O). Determine the empirical formula. (Atomic mass of N = 14 g/mol, O = 16 g/mol)

• NO

A compound is made up of 24 grams of magnesium (Mg), 12 grams of carbon (C), and 48 grams of oxygen (O). Determine the empirical formula. (Atomic mass of Mg = 24 g/mol, C = 12 g/mol, O = 16 g/mol)

A compound contains 4 grams of hydrogen (H) and 32 grams of oxygen (O). Determine the empirical formula. (Atomic mass of H = 1 g/mol, O = 16 g/mol)

• HO

A compound is composed of 54 grams of aluminum (Al) and 96 grams of oxygen (O). Determine the empirical formula. (Atomic mass of Al = 27 g/mol, O = 16 g/mol)

• AlO

A compound contains 80 grams of sulfur (S) and 120 grams of oxygen (O). Determine the empirical formula. (Atomic mass of S = 32 g/mol, O = 16 g/mol)

• SO

A compound is made up of 40 grams of calcium (Ca), 12 grams of carbon (C), and 48 grams of oxygen (O). Determine the empirical formula. (Atomic mass of Ca = 40 g/mol, C = 12 g/mol, O = 16 g/mol)

A compound contains 10 grams of hydrogen (H), 80 grams of carbon (C), and 160 grams of oxygen (O). Determine the empirical formula. (Atomic mass of H = 1 g/mol, C = 12 g/mol, O = 16 g/mol)

A compound is composed of 56 grams of iron (Fe) and 32 grams of oxygen (O). Determine the empirical formula. (Atomic mass of Fe = 56 g/mol, O = 16 g/mol)

• FeO

A compound contains 63.5 grams of copper (Cu) and 16 grams of oxygen (O). Determine the empirical formula. (Atomic mass of Cu = 63.5 g/mol, O = 16 g/mol)

• CuO