How many grams are in 4.35 moles of Ar?

1 Answer
anor277
Mar 3, 2016

Approx. 170 g.

Explanation:

Argon has a mass of 39.95 g*mol^-1. If there are 4.35 mol, then the mass is simply 4.35 molxx39.95*g*mol^-1. Note that as an inert gas, we quite properly assume that argon is atomic. What assumption would we make if the gas had been oxygen or nitrogen?

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