(b) **What is the partial pressure in atm of O _{2} for the mixture if it is held in a 15.50 L vessel at 16°C?**

molar mass O_{2} = 32.00 g/mol

$\mathbf{moles}\mathbf{}{\mathbf{O}}_{\mathbf{2}}\mathbf{=}\mathbf{15}\mathbf{.}\mathbf{08}\mathbf{}\overline{)\mathbf{g}\mathbf{}{\mathbf{O}}_{\mathbf{2}}}\mathbf{\times}\frac{\mathbf{1}\mathbf{}\mathbf{mol}\mathbf{}{\mathbf{O}}_{\mathbf{2}}}{\mathbf{32}\mathbf{.}\mathbf{00}\mathbf{}\overline{)\mathbf{g}\mathbf{}{\mathbf{O}}_{\mathbf{2}}}}$

**moles O _{2} = 0.47125 mol**

You may want to reference (Pages 411 - 412) Section 10.6 while completing this problem.

(a) What are the mole fractions of each component in a mixture of 15.08 g of O_{2}, 8.17 g of N_{2}, and 2.64 g of H_{2}?

(b) **What is the partial pressure in atm of O _{2} for the mixture if it is held in a 15.50 L vessel at 16 ^{o}C?**

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