Question

calculate the molar mass of non volatile solute molar mass 40 gm/molewhich shouls be dissolved 228gm octate to reduce itsvapour pressure 40% .

Answer 1

• Molar mass=40g/mol
• Given mass=228g

We know

$\boxed{\sf No.\:of\:moles =\dfrac{Molar\:mass}{Given\:mass}}$

$\\ \sf \longmapsto \: No\:of\:moles=\dfrac{228}{40}$

$\\ \sf \longmapsto \: No\:of\:moles=5.7mol$