Question

How many gram are present in there 3 .5 mol of oxygen

Answer 1

heya @User

1 mole of oxygen = 16 g

3.5 mole oxygen = 16 * 3.5 = 56 g

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Answer 2

One mole oxygen = 16 g

3.5 moles oxygen = 16 * 3.5 = 56 g

simple humble noble answer!!!!!!!