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11th Class Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank 11th CBSE Chemistry Some Basic Concepts of Chemistry

  • question_answer
    1 L of a gas at S.T.P. weighs 1.97 g. What is the vapour density of the gas?

    Answer:

                    22.4 L of the gas at S.T.P. will weigh =\[1.97\times 22.4\,g\]= 44.1 g , i.e., molecular mass = 44.1. Hence, vapour density = 44.1/2 = 22.05.


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