In: Chemistry
1.Calculate the number of molecules in 0.750 mol of methane, CH4.
2. Calculate the number of moles in 15.0 g of oxygen gas, O2.
3. Calculate the mass of 115 molecules of carbon dioxide
4. Calculate the number of molecules in 2.25 g of sulfur hexafluoride.
5. Calculate the number of carbon atoms in 1.50 g of butane, C4H10.
6. Calculate the mass of calcium chloride that contains 3.20 × 1024 atoms of chlorine.
7. Calculate the number of water molecules formed by the complete combustion of 7.21 g of ethane, C2H6