Q1 / 150 · MHT CET 2025 (21 Apr Shift 1) · Chemistry

Find the number of moles present in 0.448 L of dihydrogen at STP.

  • A
    0.08 mol
  • B
    0.06 mol
  • C
    0.04 mol
  • Correct answer
    D
    0.02 mol

Solution

At STP, the molar volume of an ideal gas is $22.4\text{ L/mol}$. The number of moles $n$ of dihydrogen gas occupying $0.448\text{ L}$ is obtained from $n = \frac{V}{V_m}$.

$n = \frac{0.448}{22.4} = 0.02\text{ mol}$

This corresponds to option D.

Hence, the correct answer is option: 'D'.

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