Question #79862

1 Answer
Mar 20, 2017

Answer:

Using #PV = nRT#, the answer is .0259 moles.

Explanation:

You would use the equation #PV = nRT# (affectionately referred to as "piv-nert" by chemistry lovers)

where:
P is pressure
V is volume in liters
n is moles
R is the gas constant (its values vary depending on what unit of pressure you're using)
T is temperature in kelvin

In your case:
P = 735 mmHg
V = 660 mL = .660 L
n = ?
R = 62.4 #(L*mmHg)/(K*mol)#
T = 27 Celsius = 27 + 273 = 300 degrees kelvin

#(735)(.660) = (n)(62.4)(300)#

solve for n and the answer is .0259 moles.