Question

Fill in the blank from the choices given in bracket : The number of moles in 11 g. of nitrogen gas is …………… [0.39, 0.49, 0.29] [N = 14]

August 4, 2024

Answer

The number of moles in 11 g. of nitrogen gas is 0.39

Gram molecular mass of nitrogen gas (N₂) = 2(14) = 28

28 g of nitrogen gas = 1 mole

∴ 11 g of nitrogen gas = $<span class="katex"><span class="katex-mathml">1\over28$ × 11 = 0.39

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