The number of moles of sodium oxide in $620 \ g$ of it is ................ $moles$.
- A$1$
- B$10$
- C$18$
- D$100$
Explore More
Similar Questions
$19.7 \ kg$ of gold was recovered from a smuggler. How many atoms of gold were recovered? (Atomic mass of $Au = 197 \ g/mol$)
Difficult
View SolutionHow many moles of $Mg_3(PO_4)_2$ contain $0.25$ moles of oxygen atoms?
Medium
View SolutionOne mole of carbon atom weighs $12 \; g$. The number of atoms in it is equal to: (Mass of one carbon-$12$ atom is $1.9926 \times 10^{-23} \; g$)
What is the molarity of $H_2O$ in pure water?
Medium
View SolutionIf $3.01 \times 10^{20}$ molecules are removed from $98 \ mg$ of $H_2SO_4$,then the number of moles of $H_2SO_4$ left are:
MediumKCET 2017
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