Chemical Composition Test

C5H10O5

A compound with empirical formula CH2O has molar mass of 150 g. What is the molecular formula?

22.99 g

A sample of sodium containing Avagadro's number of atoms has a mass of ______________________.

False

T/F: 0.100 mol of sodium chloride weighs 5.84 grams

True

T/F: One mole of any substance contains 6.022x10*23 particles

True

T/F: The mass of 1.00 mol of water is 18.0 grams

True

T/F: The molar mass of copper (II) chloride is 134.5 grams

False

T/F: The molar mass of silver is 47 grams

4.16 mol

How many moles of water are present in 75g of H20?

Particles of 1 mol of a substance

What is Avagadro's number?

74.9%

What is the mass percent of carbon in methane, CH4?

74.10 g

What is the molar mass of calcium hydroxide?

27.3%

What is the percent by mass of carbon in CO2?