Calculate the number of moles in $5.75 \, g$ of sodium (atomic mass of sodium $= 23$).

  • A
    $0.15 \, \text{moles}$
  • B
    $0.25 \, \text{moles}$
  • C
    $0.35 \, \text{moles}$
  • D
    $0.45 \, \text{moles}$

Explore More

Similar Questions

Calculate the number of atoms in:
$(i)$ $0.02$ moles of carbon
$(ii)$ $30$ grams of carbon
$(iii)$ $6$ moles of aluminium ions.

Difficult
View Solution

State whether the following statement is true or false:
The relative atomic masses of all elements have been found with respect to an atom of oxygen-$16$.

Which of the following statements is not true about an atom?

Calculate the mass of $10$ carbon atoms.

$(i)$ $(a)$ What do you understand by $1 \text{ amu}$ or $1 \text{ u}$?
$(b)$ How is it linked with relative atomic mass?
$(ii)$ How do we know the presence of atoms if they do not exist independently for most of the elements?

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