Question

Calculate the number of molecules in 11.2 litre of so2 gas at ntp

Answer 1

Dear Student

22.4 L of SO₂ gas contains N_A molecules.
1 L of SO₂ ​​​​​​gas contains N_A/22.4 molecules
11.2 L of SO₂ gas contains (N_A × 11.2)/22.4 = N_A/2
N_A = 6.023 × 10²³
= 6.023 × 10²³ / 2 = 3.011 × 10²³ molecules.

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