The mass of 224 mL of hydrogen gas at STP is :
The mass of 224 mL of hydrogen gas at STP is :
(A) 0.02 g
(B) 0.224 g
(C) 2.24 g
(D) 20.0 g
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(A) 0.02 g
As we know,
The volume of 1 mole of any gas at STP contain = \(22400\,ml/mol\)
\(\therefore \) Number of moles of hydrogen gas = \(\frac{224\,ml}{22400\,ml/mol}\)
weight (mass) of \(10^{-2}\) mol of hydrogen gas = \(10^{-2}\times2\)
= 0.02 g
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