Exam (elaborations)
Class XI Chapter 1 – Some Basic Concepts of Chemistry
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Class XI Chapter 1 – Some Basic Concepts of Chemistry Calculate the molecular mass of the following: (i) H2O (ii) CO2 (iii) CH4 Answer H2O: The molecular mass of water, H2O = (2 × Atomic mass of hydrogen) + (1 × Atomic mass of oxygen) = [2(1.0084) + 1(16.00 u)] ...
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