A 25-cm-diameter cylinder of helium gas is 20cm long and at
A 25-cm-diameter cylinder of helium gas is 20cm long and at 19C. The pressure measure reads 120 psi. How many helium atoms are in the cylinder? What is the mass of the helium?
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a 25-cm-diameter cylinder of helium gas is 20cm long and at 19c the pressure measure reads 120 psi how many helium
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