Calculate the number of moles in $90 \text{ g}$ of water. (in $\text{ moles}$)

  • A
    $2$
  • B
    $5$
  • C
    $10$
  • D
    $18$

Explore More

Similar Questions

Which of the following represents a correct chemical formula? Name it.

Which of the following compounds contain polyatomic ions?
$NaOH, NaCl, Na_{2}O, NaNO_{3}$

Which has more number of atoms?
$(i)$ $100 \, g$ of $N_2$
$(ii)$ $100 \, g$ of $NH_3$

Calculate the number of atoms in:
$(a)$ $16 \, g$ of oxygen $(O_2)$ molecules
$(b)$ $0.1 \, mole$ of carbon atoms.

$A$ sample of ethane $(C_2H_6)$ gas has the same mass as $1.5 \times 10^{20}$ molecules of methane $(CH_4)$. How many $C_2H_6$ molecules does the sample of gas contain?

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