Question

1 mol of hydrocarbon P (contains C and H only)
required 240 g of oxygen (O2) for complete
combustion at standard state. If at standard state
heat of combustion of P(l) is -3350 kJ/mol while
heat of formation of CO2(g), H2O(l) and P(I) are
-400 kJ/mol, -300 kJ/mol and 50 kJ/mol. The
molar mass of P is (in g/mol)​

Answer 1

Answer:76

Explanation: