KVPY2015ChemistrySome Basic Concepts of Chemistry
If Avogadro's number is A ₀ , the number of sulphur atoms present in 200 ~mL of 1 ~N H ₂ SO ₄ is
Options
- AA ₀ / 5
- BA ₀ / 2
- CA ₀ / 10
- DA ₀
Correct answer
C. A ₀ / 10
Step-by-step solution
Avogadro's number = A ₀ Normality = n _ t Molarity 1=2 M M = 1 2 ~mol ~L ⁻¹ Moles of H ₂ SO ₄= 1 2 0.2=0.1 moles Normality =1 ; Volume =200 ml (0.2 litre ) Moles of hydrogen =0.2 moles Moles of sulphur =0.1 moles Atoms =0.1 ~A ₀