\(\,\\ \text{Number of mole, }n = \dfrac{\text{Number of particles}}{N_A} \)
\(\, \\ \text{Number of mole, }n = \dfrac{\text{Mass (g)}}{\text{Molar mass (g mol}^{-1})} \\ \)
\(\, \\ \text{Number of moles} \times \text{Molar value}\\\)
\(\, \\ \text{Volume of gas} \div \text{Molar volume}\\\)
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