One mole of any substance contains 6.022 × 1023 atoms/molecules. Number of molecules of H2SO4 present in 100 mL of 0.02M H2SO4 solution is ______. (i) 12.044 × 1020 molecules (ii) 6.022 × 1023 molecules (iii) 1 × 1023 molecules (iv) 12.044 × 1023molecules

3 years ago

Correct Answer: (i) 12.044 × 10²⁰ molecules

Explanation: Moles of H₂SO₄= Molarity of H₂SO₄×Volume of solution (L)

Hence, the number of molecules of H₂SO₄ present in 100 mL of 0.02M H₂SO₄ solution is12.044 × 10²⁰ molecules.