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116   g of a substance upon dissociation reaction, yields 7 . 5   g of hydrogen, 60   g of oxygen and 48 . 5   g of carbon. Given that the atomic masses of H , O and C are 1 , 16 and 12 , respectively. The data agrees with how many formulae of the following? A. CH 3 COOH B. HCHO C. CH 3 OOCH 3 D. CH 3 CHO

Correct answer

2

Step-by-step solution

Organic   Compound   containg   C , H , O ⟶ dissociati on H 7 . 5 gram + O 60 gram + C 48 . 5 gram % of H in the given organic compound = 7 . 5 116 × 100 = 6 . 465 % (A) % of H = 4 60 × 100 = 6 . 6 % (B) % of H = 2 30 × 100 = 6 . 6 % (c) % of H = 6 62 × 100 = 7 . 677 % (D) % of H = 4 44 × 100 = 9 . 09 % The percentage of Hydrogen in the given organic compound is equal to 6 . 465 % which is approximately equal to the percentage of hydrogen in CH 3 COOH   and  

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