We’re being asked to calculate the temperature of hydrogen in °C.

We will use **ideal gas equation** to calculate for the pressure:

$\overline{){\mathbf{PV}}{\mathbf{=}}{\mathbf{nRT}}}$

P = pressure, atm

V = volume, L

n = moles, mol

R = gas constant = 0.08206 (L·atm)/(mol·K)

T = temperature, K

If 9.93 moles of hydrogen gas fills up 56.9 L of a tank, the pressure will be 1,140 torr at what temperature in °C?

A. 0.170

B. 168

C. -155.7

D. -170

E. 100.0

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