p and Q are two elements which forms P2 Q3 and PQ2 it 0.15 mole of P2Q3 weight 5.9 grams and 0.15 mole of PQ2 9.3gm. what are atomic weights of PandQ

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Arun · Answer

0.15 moles of P 2 Q 3 weighs 15.9 g Therefore , 1 moles of P 2 Q 3 weigh 106 g Now, 0.15 moles of PQ 2 weigh 9.3 gn 1 mole of PQ 2 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

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p and Q are two elements which forms P2 Q3 and PQ2 it 0.15 mole of P2Q3 weight 5.9 grams and 0.15 mole of PQ2 9.3gm. what are atomic weights of PandQ

p and Q are two elements which forms P2 Q3 and PQ2 it 0.15 mole of P2Q3 weight 5.9 grams and 0.15 mole of PQ2 9.3gm. what are atomic weights of PandQ

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