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1.5 mol of O(2) combines with Mg to form...

1.5 mol of `O_(2)` combines with Mg to form oxide MgO. The mass of Mg (at. Mass 24) that has combined is

A

72 g

B

36 g

C

48 g

D

24 g

Text Solution

Verified by Experts

The correct Answer is:
A
`underset("1 mole")(Mg)+underset("0.5 mole")(1/2 O_(2)) rarr MgO`
0.5 mole of oxygen react with 1 mole of Mg
1.5 mole of oxygen react with `1.5/0.5=3` mole
`24xx3=72 gm`.
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