Question

The number moles of oxygen present in 0.3 mole of oxalic acid is
a)0.6

b)1.8

c)1.2

d)2.4

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Answer 1

Answer:- 1.8

One molecule of oxalic acid dihydrate contains six oxygen atoms.

Thus, one mole of oxalic acid dihydrate will contain six gram atoms of oxygen atoms.

Hence, the number of gram atoms of oxygen present in 0.3 moles of oxalic acid dihydrate is 0.3×6=1.8 .

Answer 2

Answer:

1.8 mol

Explanation:

One molecule of oxalic acid dihydrate (C2H2O4 . 2H2O) contains six oxygen atoms.

Thus, one mole of oxalic acid dihydrate will contain six gram atoms of oxygen atoms.

Hence, the number of gram atoms of oxygen present in 0.3 moles of oxalic acid dihydrate is

0.3×6=1.8 .