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  • 116g of a substance upon dissociation reaction, yields 7.5g of hydrogen, 60g of oxygen and 48.5g of carbon. Given that the atomic masses of H,O and C are 1,16 and 12, respectively. The data ag

116g of a substance upon dissociation reaction, yields 7.5g of hydrogen, 60g of oxygen and 48.5g 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?

_______________.

\mathrm{A. \mathrm{CH}_{3} \mathrm{COOH}\; \; B. HCHO \; \; C. \mathrm{CH}_{3} \mathrm{OOCH}_{3} \; \; D. \mathrm{CH}_{3} \mathrm{CHO}}

Option: 1

2


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

In 116 g of the compound ,

\text{moles of H = 7.5}

\text{moles of O =}\frac{60}{16}=3.75

\text{moles of C =}\frac{48.5}{12}=4.04

\therefore \text{Approximately, C:H:O = 1:2:1}

\therefore \text{Empirical formula = CH}_{2}\text{O}

Thus,molecules (A) and (B) have this empirical formula.

Answer is 2

Posted by

Divya Prakash Singh

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