Asked by write2khin

Consider a 790-mL container at 21 °C in which the pressure of argon is 1.98x106 Pa.

a) What mass of argon (in g) is present in this container?
b) How many molecules is this?
Answered by DrBob222
a) Use PV = nRT, solve for n
n = grams/molar mass, solve for grams.

b) 1 mole contains 6.022 x 10^23 molecules. How many moles do you have?
Answered by Anonymous
WHich (R) do I have to use
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