There are 85 liters of gas held in a container at a pressure of 660 mmHg and a temperature of 90OC. How many moles of gas are there in the container?

Question

please explain how you got the answer, thank you

Answer 1

Usually, solving for moles of gas entails using the ideal gas law: PV = nRT or n = PV/RT. You can use the value of .0821 liter-atm/(mole-K) if you input all the values in appropriate units. In this case, you need to express the pressure in atm (given 760 mmHg = 1 atm) and the temperature in Kelvin (273.25 + °C). The rest is plugging in.

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