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

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

View Full Document Right Arrow Icon
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
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

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 Right Arrow Icon
Ask a homework question - tutors are online