Calculate the molecular mass of the following: (i)H20(ii)C02(iii)CH4

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1.H20= 2*1+1*16=18g (1 mole of water molecule have 18g molecular weight 2.same as water molecule-CO2=1*12+2*16=44g 3.CH4=1*12+4*1=16g Because masses of C, H, O are respectively 12g,1g and16g.
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