Question
If 1.204 x 10²¹ molecules of H₂SO₄ are removed from 392 mg of H₂SO₄, find the moles of H₂SO₄ left.
Options :
4 x 10⁻³
1.5 x 10⁻³
1.2 x 10⁻³
2 x 10⁻³
Answer :
2 x 10⁻³
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