In observance of Dalton’s Law given the Patm = 102.63kPa and the PH2O= 1.4kPa T=?

0.76 mol.

Explanation:

From the balanced equation: 4K + O₂ → 2K₂O,It is clear that 4.0 moles of K react with 1.0 mole of oxygen to produce 2.0 moles of K₂O.We can use cross multiplication to get the no. of moles of potassium oxide will be formed when 1.52 moles of potassium reacts with oxygen:

4.0 moles of K will produce → 2.0 moles of K₂O.

1.52 moles of K will produce → ??? moles of K₂O.

∴ The no. of moles of potassium oxide will be formed when 1.52 moles of potassium reacts with oxygen = (1.52 mol)(2.0 mol)/(4.0 mol) = 0.76 mol.