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oksano4ka [1.4K]
3 years ago
12

Determine the number of moles of air present in 1.35 L at 750 torr and 17.0°C.

Chemistry
1 answer:
kvasek [131]3 years ago
7 0

Answer:

0.0560 mol

Explanation:

You need to use the ideal gas law equation:

PV = nRT

P = 750 torr

V = 1.35 L

n = moles

R = 62.364 L torr mol^{-1} K^{-1}

T = 17.0 ˚C + 273.15 = 290.15 K

Rearranging the equation for n:

n= \frac{PV}{RT}

n= \frac{(750)(1.35)}{(62.364)(290.15)}

n = 0.0560 mol

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