One mole of element X has 0.444 times the mass of one mole of element Y. One atom of element X has 2.96 times the mass of one atom of 12C. What is the atomic weight of Y ?
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a
80
b
15.77
c
46.67
d
40.0
answer is A.
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Detailed Solution
Molar mass of x = 0,444 x molar mass of yMolar mass of x = 2.96 x12Molar mass of y=2.96×120.444=80