Question

If a gas has a volume of 1.3 L at a pressure of 0.80 atm, how many moles do you have if the temperature is 35°C?

30 points

Answer 1

The number of moles of a gas can be calculated using the Ideal Gas Law: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant (8.31 J/mol·K), and T is the temperature in Kelvin.

First, we need to convert the temperature to Kelvin: T = 35°C + 273.15 = 308.15 K

Next, we can plug in the values and solve for n:
n = (PV)/(RT) = (0.80 atm * 1.3 L) / (8.31 J/mol·K * 308.15 K) = 0.0511 moles.

So, there are 0.0511 moles of the gas

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