Question

The question says:
A sample of helium is collected by displacing 182 mL of water. The pressures of the gas and the atmosphere are equalized, using the method described in this experiment. The atmospheric pressure is 738 mmHg. The temperature of the water and that of the gas are identical at 26 C. How many moles of helium have evolved?

I know I need to use PV=nRT, but I want to make sure I'm plugging in the correct parts.
Would the pressure of the He also be 738 mmHg because it is equalized?
And is the volume of He also 182 mL because it displaced that volume of water?
bkj

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