0.2 g of an organic compound contains C, H and O. On combustion, it yields 0.15 g C O 2 and 0.12 g H 2 O . The percentage of C, H and O respectively is

Question

0.2 g of an organic compound contains C, H and O. On combustion, it yields 0.15 g C O 2 and 0.12 g H 2 O . The percentage of C, H and O respectively is, C = 15%, H = 20%, O = 65%, C = 10%, H = 8.2%, O = 81.8%, C = 12.2%, H = 8.8%, O = 79%, C = 20%, H = 6.66%, O = 73.34%

MARKS App · Accepted Answer

% of C = 12 44 × 0.15 0.2 × 100 = 20 % % of H = 2 18 × 0.12 0.2 × 100 = 6.66 % % of O = 100 - ( 20 + 6.66 ) = 73.34 %

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