Arun
Last Activity: 7 Years ago
0.15 moles of P2Q3 weighs 15.9 g
Therefore , 1 moles of P2Q3 weigh 106 g
Now, 0.15 moles of PQ2 weigh 9.3 gn
1 mole of PQ2 will weigh 62 g
Now, 2P + 3Q = 106 --- (i)
Also, P + 2Q = 62----(ii)
2P + 4Q = 124 --- (iii)
(iii) - (i)
2P + 4Q - ( 2P + 3 Q) = 124 - 106
Q = 18 , P = 26
Ans: Q = 18 , P = 26