CBSE Class 9 Answered
(i) Give any two points of significance of the formula H2O.(ii) Find the molecular mass of water.
Asked by Topperlearning User | 20 May, 2014, 03:07: PM
Expert Answer
(i) (a) It represents the compound water.
(b) It tells that water contains two elements - hydrogen and oxygen.
(c) It tells that one molecule of water contains two atoms of hydrogen and one atom of oxygen.
(d) It indicates that its molecular mass is 18 g.
(ii) Molecular mass of H2O = 2 x 1 + 1 x 16 = 18 u.
Answered by | 20 May, 2014, 05:07: PM
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