Moles of `K_(2)SO_(4)` to be dissolved in 12 moles of water of lower its vapour pressure by 10mm Hg at a temperature at which vapour pressure of pure water is 50mm Hg is

What will be the number of moles of K_(2)SO_(4) to be dissolved in 12 mol of water to lower . Its vapour pressure by 10 mm Hg at a temperature at which vapours pressure of pure water is 50 mm .

Moles of Na_(2)SO_(4) to be dissoved in 12 mole water to lower its vapour pressure by 10 mm Hg at a temperature at which vapour pressure of pure water is 50 mm is:

Moles of Na_(2)SO_(4) to be dissoved in 12 mole water to lower its vapour pressure by 10 mm Hg at a temperature at which vapour pressure of pure water is 50 mm is:

Moles of K_(2)SO_(4) to be dissolved in 12 mol water to lower its vapour pressure by 10 mmHg at a temperature at which vapour pressure of pure water is 50 mm is:

Moles of K_(2)SO_(4) to be dissolved in 12 mol water to lowest its vapour pressure by 10 mm of Hg at a temperature at which vapour pressure of pure water is 50 mm is :