5 moles of AB2 weigh 125 × 10−3 kg and 10 moles of A2B2 weigh 300 × 10−3 kg. The molar mass of A(MA) and molar mass of B(MB) in kg mol−1 are :
a)
MA = 25 × 10−3 and MB = 50 × 10−3
b)
MA = 50 × 10−3 and MB = 25 × 10−3
c)
MA = 5 × 10−3 and MB = 10 × 10−3
d)
MA = 10 × 10−3 and MB = 5 × 10−3
a)
MA = 25 × 10−3 and MB = 50 × 10−3
b)
MA = 50 × 10−3 and MB = 25 × 10−3
c)
MA = 5 × 10−3 and MB = 10 × 10−3
d)
MA = 10 × 10−3 and MB = 5 × 10−3
Question ID - 56410 | SaraNextGen Top Answer 5 moles of AB2 weigh 125 × 10−3 kg and 10 moles of A2B2 weigh 300 × 10−3 kg. The molar mass of A(MA) and molar mass of B(MB) in kg mol−1 are :
a)
MA = 25 × 10−3 and MB = 50 × 10−3
b)
MA = 50 × 10−3 and MB = 25 × 10−3
c)
MA = 5 × 10−3 and MB = 10 × 10−3
d)
MA = 10 × 10−3 and MB = 5 × 10−3
5 moles of AB2 weigh 125 × 10−3 kg and 10 moles of A2B2 weigh 300 × 10−3 kg. The molar mass of A(MA) and molar mass of B(MB) in kg mol−1 are :
|
a) |
MA = 25 × 10−3 and MB = 50 × 10−3 |
b) |
MA = 50 × 10−3 and MB = 25 × 10−3 |
|
c) |
MA = 5 × 10−3 and MB = 10 × 10−3 |
d) |
MA = 10 × 10−3 and MB = 5 × 10−3 |
1 Answer
127 votes
Answer Key / Explanation : (c) -
5 mol AB2 weighs 125 g
AB2 = 25 g/mol
10 mol A2B2 weighs 300 g
A2B2 = 30 g/mol
Molar mass of A = 5
Molar mass of B = 10
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