Empirical Formula Chemistry Lab Assignment

Empirical Formula Chemistry Lab Assignment

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1. If a sample of contains 0.62069 g of carbon, 0.103448 g of hydrogen and 0.275862 g of oxygen, what is the empirical formula of the compound?

2. Find percent composition of Na2CO
3. Find the molecular formula of the compound with empirical formula CH2O, if molar mass of compound if 180 g / mol.

4. When 2.5000 g of an oxide of mercury, (HgxOy) is decomposed into the elements by heating, 2.405 g of mercury are produced. Calculate the empirical formula.
5. Find % of water in Copper (II) sulfate tetrahydrate.
6. A compound is 19.3% Na, 26.9% S, and 53.8% O. Its formula mass is 238 g. What is its molecular formula?

7. A compound with molar mass 34 g / mol, has an empirical formula HO. Find the molecular formula of compound.

8. A compound has molecular formula C6H6, find the empirical formula of compound.
9. Find the percent composition of compound in problem 8.
10. Find the grams of carbon present in 52 g sample of C6H6.

Empirical Formula Chemistry Lab Assignment

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