The mass of freon-11 gas is m=0.597g m = 0.597 g .
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1 mol KMnO₄ contains 4 mol O, which has a molar mass of about 15.999 g/mol. Then the mass of O in the sample is
(4 mol) (15.999 g/mol) ≈ 63.996 g
The Winter Olympics are held every 4 years.
<span>-What equation can be used to solve this work problem?
t/30 + t/20 = 1
</span><span>-How many minutes will it take both hoses to fill the pool?
12 minutes</span>
