worksheet 8

# worksheet 8 - Worksheet#8 Empirical Formulas 1 State the...

This preview shows pages 1–2. Sign up to view the full content.

Worksheet #8 Empirical Formulas 1. State the empirical formula for each of the following compounds: a) C 4 H 8 ; b) C 2 H 6 O 2 ; c) N 2 O 5 ; d) Ba 3 (PO 4 ) 2 ; e) Te 4 I 16 2. What is the empirical formula for a compound that contains 0.063 mol chlorine and 0.22 mol oxygen? 3. What is the empirical formula for a compound that contains 26.1% carbon, 4.3% hydrogen and 69.6 % oxygen? 4. An oxide of nitrogen contains 30.45% N and 69.55% O. What is its empirical formula? Molecular Formulas 5. The molar mass of the oxide of nitrogen in question #9 is 92 g/mol. What is its molecular formula? 6. A chloride of silicon contains 79.1% chlorine. If its molar mass is 269 g/mol, what is its molecular formula? 7. Cortisol is a steroid hormone that is used to reduce inflammation. It has a molar mass of 362.47 g/mol, and is comprised of 69.6% C, 8.34% H, and 22.1% O. What is its molecular formula? 8. Menthol is a substance commonly used in cough drops. It has a molar mass of 156.3 g/mol and is comprised of 77.4% C, 12.9% H, and 10.2% O. What is its molecular formula? Formulas from Mass Data 9. A new compound containing xenon and fluorine was isolated. If 0.526 g of xenon reacted, and 0.678 g of the new compound was isolated, what is its empirical formula? 10. A sample of 1.256 g of elemental sulfur (S) is combined with fluorine to give a compound with the formula SF x , a stable, colorless gas. If you have isolated 5.722 g of SF x , what is the value of x? 11. A sample of 1.25 g of germanium is combined with excess chlorine to form 3.69 g of a

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 6

worksheet 8 - Worksheet#8 Empirical Formulas 1 State the...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online