Respuesta :

Answer

Explanations:

The formula for calculating the percent impurity of oxygen is expressed as:

[tex]\%O=\frac{mass\text{ of oxygen}}{Mass\text{ of water}}\times100[/tex]

Given the following parameter

Mass of water = 36.8 grams

Determine the moles of water

According to the ideal gas equation, PV = nRT

[tex]\begin{gathered} n=\frac{PV}{RT} \\ n=\frac{1atm\times64L}{0.08205\times273K} \\ n=\frac{64}{22.399} \\ n=2.857moles \end{gathered}[/tex]

Determine the mass of oxygen

Mass of O2 = moles * molar mass

Mass of O2 = 2.857 * 16

Mass of O2 =

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