Chemistry in Room 203 I promised one of the students to post the answers to the mini-worksheets from Friday's test preparation. So here goes... Worksheet #1 Worksheet #2 1) 119.0 g/mol 1) 55.9 g CO2 2) 62.0 g/mol 2) 58.0 L He 3) 28.0 g/mol 3) 3.30 x 1023 moles Ag 4) 104.1 g/mol 4) 0.186 g BF3 5) 40.3 g/mol 5) 0.147 mol BF3 6) 143.4 g/mol 6) 0.470 mol CO2 7) 213.0 g/mol 7) 12.8 mol He 8) 17.0 g/mol 8) 0.0166 mol Ag Worksheet #3 Worksheet #4 1) 42.9 g SO2 1) 16.5% N 2) 5.38 x 1022 atoms Ar 2) 27.1% Na 3) 1.94 x 102 L He 3) 27.3% C 4) 147 g W 4) 92.2% Cl 5) 19.8 L Ar 5) SO2 6) 2.69 x 1022 molecules SO2 6) BF3 7) 10.9 g He 7) CuCl2 8) 4.79 L SO2 8) XeF4 |