TEST Ch 10 Moles- Part B Math
1. How many moles and grams of gold (MM- 197) are found in 3.01 x 10^22 particles of
gold-
2. How many moles and liters of CO2 (MM-44) gas at STP are in 110 g -
3. What is the percent composition of each element in CaCO3-
Ca-
C-
0
4. What is the empirical formula of a compound that is 27.3% carbon and 72.7% oxygen-
C=
O-
5. Find the molecular formula of a compound with a molecule mass of 330 grams and an
empirical formula of P203-
6. How many grams of aluminum are in 100 g of A1203-
7. What is the density of Co, carbon monoxide gas-