Which compound has the highest percentage of | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) To find the percentage of hydrogen by mass,we use the formula: $	ext{Percentage of H} = \frac{	ext{Mass of H}}{	ext{Molar mass of compound}}

Vedclass · Accepted Answer

$CH_4$

Vedclass · Answer

(A) To find the percentage of hydrogen by mass,we use the formula: $	ext{Percentage of H} = \frac{	ext{Mass of H}}{	ext{Molar mass of compound}} 	imes 100$. $1$. For $CH_4$: Molar mass = $12 + 4 = 16 \ g/mol$. Mass of $H$ = $4 \ g$. Percentage = $(4/16) 	imes 100 = 25\%$. $2$. For $C_2H_4$: Molar mass = $24 + 4 = 28 \ g/mol$. Mass of $H$ = $4 \ g$. Percentage = $(4/28) 	imes 100 \approx 14.28\%$. $3$. For $C_6H_6$: Molar mass = $72 + 6 = 78 \ g/mol$. Mass of $H$ = $6 \ g$. Percentage = $(6/78) 	imes 100 \approx 7.69\%$. $4$. For $C_2H_2$: Molar mass = $24 + 2 = 26 \ g/mol$. Mass of $H$ = $2 \ g$. Percentage = $(2/26) 	imes 100 \approx 7.69\%$. Comparing these,$CH_4$ has the highest percentage of hydrogen.

Which compound has the highest percentage of hydrogen by mass?

Similar Questions

Find the empirical formula of the compound if $M = 68 \%$ (Atomic mass $= 34$) and the remaining $32 \%$ is oxygen:

The empirical formula of a compound is $CH$. Its molecular weight is $78$. The molecular formula of the compound will be

What is the mass percent of oxygen in ethanol $(C_2H_5OH)$ (in $\%$)?

If we want to study the relative arrangement of atoms in a molecule,we study:

On complete combustion,$0.492 \ g$ of an organic compound gave $0.792 \ g$ of $CO_2$. The $\%$ of carbon in the organic compound is $..................$ (Nearest integer)

Vedclass Test Series

Exam Paper Generator

Online Exam Module