Question

1g of oxygen combine with 0.126g of hydrogen to form H2O. 1g of nitrogen combine with 0.216g of hydrogen to form NH3. Predict the weight of oxygen required to combine with 1g of nitrogen to form an oxide.

Answer 1

When 0.126g H2 combine with 1/2 O2 than water is formed and also in the case of N2 when 1g N2 reacts with 0.216g of H2 two moles of NH3 is formed. So, when 1g of N2 reacts with 1/2 mole of O2, N2O is formed hence 1g of oxygen is required by weight to form N2O.

Answer 2

FIRSTLY THE REACTION IS----
O2 PLUS 2H2------) 2H2O
& N2 PLUS 3H2------) 2NH3
CLEARLY0IT IS A QUESTION OF LIMITING REAGENT .
BY SOLVING IT THE WEIGHT OF NH3 PRODUCED IS ( 0.084 ).