Chapter 1 – Some Basic Concepts of Chemistry

Some Basic Concepts of Chemistry Question 1.Calculate the molecular mass of the following :(i) H2o(ii) CO2(iii) CH4 Solution:(i) Molecular mass of H2O :2 × 1 + 1 × 16 = 18u(ii) Molecular mass of CO2 :1 × 12 + 2× 16 = 44 u(iii) Molecular mass of CH4 : 12 + 4 × 1 = 16 u Question 2.Calculate the mass percent of […]

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