Calculate the number of molecules present in $5.4 \ g$ of urea (Molar mass of urea $= 60 \ g \ mol^{-1}$).
- A$5.42 \times 10^{22}$
- B$6.022 \times 10^{22}$
- C$4.312 \times 10^{22}$
- D$9.933 \times 10^{22}$
Explore More
Similar Questions
If one atom of an element $X$ weighs $6.643 \times 10^{-23} \ g$,then find the number of moles of atoms in $50 \ kg$ of element $X$. (in $moles$)
How many $H$ atoms are present in $0.46 \, g$ of ethanol $[C_2H_5OH]$?
Medium
View SolutionHow many atoms are contained in one mole of sucrose $C_{12}H_{22}O_{11}$?
Easy
View SolutionAvogadro number is
Easy
View SolutionWeight of $112 \, mL$ of oxygen at $NTP$ on liquefaction would be .............. $g$.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo