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At STP 4.95 L of chlorine is produced during a chemical reaction. What is the mass of this gas in grams?

it's not 15.6537, 7.82683, 15.666, or 7.83298 ...so then what is it?

thanks ~!

2007-11-01 11:27:38 · 1 answers · asked by lilcbcgurl 1 in Science & Mathematics Chemistry

1 answers

The molar mass of Cl2 is 70.91 g/mol
So the requested result is 70.91*n = 70.91*PV/RT = 70.91*4.95/(0.08206*273) = 15.7g
It IS 15.7g, but NOT 15.6537 or15.666. Pay attention to significant figures!!

2007-11-02 07:53:47 · answer #1 · answered by Hahaha 7 · 0 0

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