X and Y are two elements which can form X2Y and X2Y3. 0.2 mole X2Y3 weighs 15.2 g and 0.5 mole X2Y weighs 22 g. Atomic weights of X and Y are:
X and Y are two elements which form X2Y3 and XY2 molecules. If 0.15 mole of X2Y3 and XY2 weighs 15.9 g and 9.3 g respectively. What are the atomic mass of X and Y.