Calculate the molar mass of the following substances.
$(a)$ Ethyne,$(C_2H_2)$
$(b)$ Sulphur molecule,$(S_8)$

  • A
    $52\,u$ and $265\,u$
  • B
    $26\,u$ and $256\,u$
  • C
    $62\,u$ and $552\,u$
  • D
    $28\,u$ and $320\,u$

Explore More

Similar Questions

Calculate the number of molecules of sulphur $(S_8)$ present in $16 \, g$ of solid sulphur.

Difficult
View Solution

What is the mass of :
$(a)$ $0.2$ mole of oxygen atoms?
$(b)$ $0.5$ mole of water molecules?

Calculate the molecular masses of $C_2H_4$,$NH_3$ and $CH_3OH$.

Calculate the number of aluminium ions present in $0.051 \, g$ of aluminium oxide.
[Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of $Al = 27 \, u$.]

Difficult
View Solution

Convert the following into moles:
$(a)$ $12\, g$ of oxygen gas
$(b)$ $20\, g$ of water
$(c)$ $22\, g$ of carbon dioxide.

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