Suppose the elements X and Y combine to form two compounds XY₂ and X₃Y₂. When 0.1 mole of XY₂ weights 10 g and 0.05 mole of X₃Y₂ weighs 9 g, the atomic weights of X and Y are

What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgNO₃ is mixed with 50 mL of 5.8% NaCl solution ? (Ag = 107.8, N = 14, O = 16, Na = 23, Cl = 35.5

If Avogadro number N_A, is changed from 6.022 $$ \times $$ 10²³ mol^$$-$$1 to 6.022 $$ \times $$ 10²⁰ mol^$$-$$1, this would change

The number of water molecules is maximum in