At 32 C the pressure inside a nitrogen-filled tennis ball either the volume of 0.148L is 212 kPa. How many moles of nitrogen gas are in the tennis ball

The number of moles of nitrogen gas in the tennis ball is 0.0124 moles

Explanation:

Here we have the universal gas equation as

P·V = n·R·T

Where:

P = Pressure of the gas = 212 kPa

V =  Volume of the gas = 0.148 L = ‪0.000148‬ m³

n = Number of moles

R = Universal gas constant = 8.3145 J / mol·K.

T = Temperature of the gas in Kelvin = 32 + 273.15 = 305.15 K

Therefore,

The number of moles of nitrogen gas in the tennis ball = 0.0124 moles.