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Calculate the molar mass of the followin...

Calculate the molar mass of the following: (i) `H_(2)O`, (ii) `CO_(2)`, (iii) `CH_(4)`

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(i) `H_(2)O =2 xx H +1 xx O`
`2 xx 1 +1 xx 16=18`
(ii) `CO_(2) = 12 xx 1 + 2 xx 16 = 44`
(iii) `CH_(4) =1 xx C +4 xx H`
`1 xx 12 + 4 xx 1=16`
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