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18 June, 21:45

A cylinder contains oxygen at a pressure of 10.0 atm and a temperature of 300.0 K. The volume of the cylinder is 10,000 mL. What is the mass of oxygen gas?

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  1. 19 June, 00:21
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    130 g of O₂

    Explanation:

    Let's apply the Ideal Gases Law, to solve this.

    Pressure. volume = moles. R. T° (K)

    First of all, we need to convert the volume in mL to L, because the units of R

    10000 mL. 1L/1000mL = 10L

    Let's replace → 10 atm. 10L = n. 0.082L. atm/mol. K. 300K

    (100 atm. L) / (0.082L. atm/mol. K. 300K) = n

    4.06 moles = n

    Let's convert the moles to mass → 4.06 mol. 32 g/1mol = 130 g
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