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What is the molar mass of a gas if 0.281 g of the gas occupies a volume of 125 mL at a temperature 26 °C and a pressure of 677 torr?

Respuesta :

Answer:

we will use universal gas law

Explanation:

First, convert torr to atm

[tex]\frac{677}{760} = 0.89[/tex]

[tex]PV = \frac{mass}{molar mass} R T[/tex]

[tex]0.125 * 0.89 = \frac{0.281}{molar mass} * 0.082 * (26 +273)[/tex]

Molar mass = 61.9

Note: I converted Celsius to kelvin and mL to L

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