CLASS 11 CHEMISTRY CHAPTER 1-SOME BASIC CONCEPTS OF CHEMISTRY

1. Calculate the molecular mass of the following : (i) H2O (ii) CO2 (iii) CH4 Solution : (i)CH4 : Molecular weight of methane, CH4 = (1 x Atomic weight of carbon) + (4 x Atomic weight of hydrogen) = [1(12.011 u) +4 (1.008u)] = 12.011u + 4.032 u = 16.043 u (ii) H2O : Molecular weight …

CLASS 11 CHEMISTRY CHAPTER 1-SOME BASIC CONCEPTS OF CHEMISTRY Read More »