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May 26, 2015

Homework Help: Chemistry

Posted by Lisa on Sunday, February 21, 2010 at 10:57pm.

If 0.670mol of liquid Br2 and 460mL of 1.72M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many moles of liquid Br2 remain? Round answer to 3 sig figs.

2NaI(aq) + Br2(l) -> 2NaBr(aq) + I2(s)

Additional Information:

MM of Br2 = 159.81 g/mol
MM of NaI = 149.89 g/mol
Density of Br2 = 3.12g/mL
Molar Volume = 22.4L at STP
Gas Constant = 0.0821

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