20 mL solution of 0.1 M ferrous sulphate was completely oxidised using a suitable oxidising agent. What is the number of electrons exchanged?
1.204 x 1022
193
1930
1.204 x 1021
Calculate the molar mass of the following:
CO2
Molecular mass of CO2 = Mass of carbon +Mass of oxygen.
Mass of carbon =12.01
Mass of oxygen=16.00
12.01 amu +2 x (16.00 amu) = 44.01 amu.