If I have a standard men's basketball that has a circumference of 29.5 inches and I fill the ball with helium to the recommended 9.0 psi at room temperature (25C), what will be the mass of the helium in the ball?

Question

australopithecus · Answer

Assume it is an ideal gas, the container doesn't matter in this case.

Use Ideal gas law

PV = nRT

australopithecus · Answer

Do you want me to go over the variables or are you familiar with it?

squirrels · Answer

is this the one?

anonymous · Answer

Don't forget to use absolute pressure (gauge + 1 atm) and absolute temperature (e.g., oC + 273).