(1a)At 298 K and 100 kPa, the oxygen gas produced in this decomposition occupied a volume of 1.22 × 10‐⁴m³. State the ideal gas equation and use it to calculate the number of moles of oxygen produced in this decomposition. (The gas constant R = 8.31 J K-¹ mol¯¹) (ai)Ideal gas equation (aii)Moles of oxygen (1b)Compound Y contains 45.9% of potassium and 16.5% of nitrogen by mass, the remainder being oxygen. (bi) State what is meant by the term empirical formula. (bii) Use the data above to calculate the empirical formula of Y.
