We’re being asked to **calculate the volume of 0.543 moles He **at **STP**

Recall that ** standard temperature and pressure (STP)** is defined as 1 atm and 0 ˚C.

Recall that the ** ideal gas law** states that:

What volume will 0.543 moles of He occupy at STP?

(A) 41.3 L

(B) 13.3 L

(C) 12.2 L

(D) 22.4 L

(E) 1.11 L

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