Question

Combustion analysis of an unknown compound provides the following data: 98.28 grams carbon (C), 16.21 grams hydrogen (H), and 65.52 grams oxygen (O). What is the percent composition of carbon in this compound? 6.06% C 54.6% C 33.3% C 36.4% C

Answer 1

Total mass ---->>>> C+H+O = 98,28 + 16,21 + 65,52 = 180,01 g

Carbon mass in this compound: 98,28 g
%C: (98,28/180,01)×100% = 0,546×100% = 54,6%

:•)

Answer 2

Answer : The correct option is, 54.6 %

Explanation: Given,

Mass of C = 98.28 g

Mass of H = 16.21 g

Mass of O = 65.52 g

First we have to calculate the total mass of the compound.

Total mass of compound = Mass of C + Mass of H + Mass of O

Total mass of compound = 98.28 + 16.21 + 65.52 = 180.01 g

Now we have to calculate the percent composition of carbon in the compound.

Formula used :

`\%\text{ Composition of carbon}=\frac{\text{Mass of carbon}}{\text{Total mass of compound}}* 100`

Now put all the given values in this formula, we get the percent composition of carbon in the compound.

`\%\text{ Composition of carbon}=(98.28g)/(180.01g)* 100=54.59\% \approx 54.6\%`

Therefore, the percent composition of carbon in the compound is, 54.6 %