a copper - oxygen compound consist of 10.00g of copper and 2.52g of oxygen . what is its empirical formula?
Empirical Formula : CuO
10 grams of copper is 0.157 moles, and 2.52 grams of oxygen is 0.157 moles.
Hence, there is an equal ratio of Copper to Oxygen, so a 1:1 ratio mean that the resulting empirical formula would be ‘CuO’.