0.25 mole of AB2 weighs 16g and 0.25mole ofAB3 weighs 20g what atomic mass of A and B
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AB2 WEIGHS 0.25MOLE. =16 GM
1mole AB2 =16/0.25=64gm
AB3 WEIGHS 0.25MOLE =20gm
1mole AB3 WEIGHT =20/0.25=80 gm
A+2B =64. ( 1)
A+3B =80. ( 2)
EQN 2 - EQN1 =B=16
A+2(16) =64
A =64-32=32
A =32
B=16
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