How many moles of gas are in a bike tire with a volume of 2.00 x 10

Question:

How many moles of gas are in a bike tire with a volume of 2.00 x 10-3 m (2.00 L), a pressure of 7.00 x 105 Pa (a gauge pressure of just under 90.0 lb/in2), and at a temperature of 18.0°C?

Strategy

Identify the knowns and unknowns, and choose an equation to solve for the unknown. In this case, we solve the ideal gas law, PV = nRT, for the number of moles n.

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