(C) Given that the compound contains $2.8\%$ $Fe$ by mass and one molecule contains one $Fe$ atom.The atomic mass of $Fe$ is $56\, g/mol$.Let the mola

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

(C) Given that the compound contains $2.8\%$ $Fe$ by mass and one molecule contains one $Fe$ atom.The atomic mass of $Fe$ is $56\, g/mol$.Let the molar mass of the compound be $M\, g/mol$.According to the problem,$2.8\%$ of $M = 56$.$\frac{2.8}{100} \times M = 56$$M = \frac{56 \times 100}{2.8}$$M = \frac{5600}{2.8} = 2000\, g/mol$.

Class 11 Chemistry Some Basic Concepts of Chemistry Percentage composition and Molecular formula

Difficult

$A$ compound contains $2.8\%$ $Fe$ by mass. If the compound contains a single $Fe$ atom in its one molecule,then the molar mass $(g/mol)$ of the compound is $(Fe = 56\, amu)$.

A
$1000$
B
$1500$
C
$2000$
D
$2500$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

Some Basic Concepts of Chemistry

Subtopic

Percentage composition and Molecular formula

Substances $X$ and $Y$ have the same mass. If their atomic weights are $30$ and $20$ respectively,and the molecular weight of the compound is $120$,what is the molecular formula of the compound?

Easy

View Solution

$A$ compound contains $10^{-2} \%$ of phosphorus. If the atomic mass of phosphorus is $31$,the molecular mass of the compound having one phosphorus atom per molecule is :-

Difficult

View Solution

An organic compound on analysis gave the following results: $C = 54.5\%$,$O = 36.4\%$,$H = 9.1\%$. The empirical formula of the compound is:

MediumIIT 2004

View Solution

The percentage of $Se$ in peroxidase anhydrous enzyme is $0.5\%$ by weight (atomic weight $= 78.4$). Then,the minimum molecular weight of peroxidase anhydrous enzyme is:

MediumAIPMT 2001

View Solution

If a compound on analysis was found to contain $C = 18.5\%$,$H = 1.55\%$,$Cl = 55.04\%$,and $O = 24.81\%$,then its empirical formula is:

MediumAIIMS 1998

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

$A$ compound contains $2.8\%$ $Fe$ by mass. If the compound contains a single $Fe$ atom in its one molecule,then the molar mass $(g/mol)$ of the compound is $(Fe = 56\, amu)$.

Similar Questions

Substances $X$ and $Y$ have the same mass. If their atomic weights are $30$ and $20$ respectively,and the molecular weight of the compound is $120$,what is the molecular formula of the compound?

$A$ compound contains $10^{-2} \%$ of phosphorus. If the atomic mass of phosphorus is $31$,the molecular mass of the compound having one phosphorus atom per molecule is :-

An organic compound on analysis gave the following results: $C = 54.5\%$,$O = 36.4\%$,$H = 9.1\%$. The empirical formula of the compound is:

The percentage of $Se$ in peroxidase anhydrous enzyme is $0.5\%$ by weight (atomic weight $= 78.4$). Then,the minimum molecular weight of peroxidase anhydrous enzyme is:

If a compound on analysis was found to contain $C = 18.5\%$,$H = 1.55\%$,$Cl = 55.04\%$,and $O = 24.81\%$,then its empirical formula is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module