SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calculate the molecular mass of
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17
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18
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14
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None of the above
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Explanation:
Detailed explanation-1: -Using the periodic table of the elements to find atomic weights, we find that hydrogen has an atomic weight of 1, and oxygen’s is 16. In order to calculate the molecular weight of one water molecule, we add the contributions from each atom; that is, 2(1) + 1(16) = 18 grams/mole.
Detailed explanation-2: -The gram molecular mass of water (H2O) = 2(1)+16=18 g.
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