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# Dalton's Law: Total Pressure from Partial Pressures & Moles

CHEM-QHGSUP

What is the total pressure of a closed system containing 1.50 moles of He gas with a partial pressure of 0.300 atm, 3.50 moles of methane gas with a partial pressure of 0.700 atm and 5.00 moles of $H_{2}$ gas with a partial pressure of 1.00 atm?

A

10.00 atm

B

2.00 atm

C

7.90 atm

D

0.210 atm