A hydrocarbon contains 80% C. The vapour den | vedclass

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

Question

(C) $1$. Calculate the molar mass: $	ext{Molar mass} = 2 	imes 	ext{Vapour density} = 2 	imes 30 = 60 \ g/mol$. $2$. Calculate the mass of carbon:

Vedclass · Accepted Answer

$C_4H_{12}$

Vedclass · Answer

(C) $1$. Calculate the molar mass: $	ext{Molar mass} = 2 	imes 	ext{Vapour density} = 2 	imes 30 = 60 \ g/mol$. $2$. Calculate the mass of carbon: $	ext{Mass of } C = 80\% 	ext{ of } 60 = 0.80 	imes 60 = 48 \ g$. $3$. Calculate the number of carbon atoms: $	ext{Number of } C 	ext{ atoms} = 48 / 12 = 4$. $4$. Calculate the mass of hydrogen: $	ext{Mass of } H = 60 - 48 = 12 \ g$. $5$. Calculate the number of hydrogen atoms: $	ext{Number of } H 	ext{ atoms} = 12 / 1 = 12$. $6$. The molecular formula is $C_4H_{12}$.

$A$ hydrocarbon contains $80\% \ C$. The vapour density of the compound is $30$. The molecular formula of the compound is :-

Similar Questions

In a substance,the number of atoms of $Cr$ and $O$ are $4.8 \times 10^{10}$ and $9.6 \times 10^{10}$ respectively. The empirical formula of the substance is .......

An organic compound contains $69 \%$ carbon and $4.8 \%$ hydrogen,the remainder being oxygen. Calculate the masses of carbon dioxide and water produced when $0.20 \ g$ of this substance is subjected to complete combustion.

An oxygen-containing organic compound was found to contain $52 \%$ carbon and $13 \%$ hydrogen. Its vapour density is $23$. The compound reacts with sodium metal to liberate hydrogen. $A$ functional isomer of this compound is

The molecular formula of feldspar is

An organic compound is estimated through the Dumas method and is found to evolve $6$ moles of $CO_2$,$4$ moles of $H_2O$,and $1$ mole of nitrogen gas. The formula of the compound is

Vedclass Test Series

Exam Paper Generator

Online Exam Module