How many moles of helium would be found in a get well soon ballon with a...
How many moles of helium would be found in a get well soon ballon with a volume of 1325 mL, at 21 ºC and 524 mmHg? Do this without a calculator. You may need to use longhand calculations. The question is designed to tolerate reasonable rounding.
Homework Answers
we have to use Pv = nRT
P = 524 mmHg = 0.6895 atm
V = 1325 mL = 1.325 L
R = 0.082 atm L/mole K
T 273 + 21 = 294 K
put all the values
0.6985 x 1.325 = n x 0.0821 x 294
n = 0.0383 moles
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