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July 3, 2015

Homework Help: college chemistry

Posted by sparkle on Friday, October 1, 2010 at 5:13pm.

1) If 740. mL of 0.06622 M aqueous NaI and 370. mL of 0.07151 M aqueous Pb(NO3)2 are reacted stoichiometrically according to the equation, what mass (g) of NaI remained?

Pb(NO3)2(aq) + 2 NaI(aq) → PbI2(s) + 2 NaNO3(aq)

2) If 180 mL of 0.581 M aqueous HCl and 690 mL of 0.0696 M aqueous CO32- are reacted, how many mol of liquid H2O is produced.

Na2CO3(aq) + 2 HCl(aq) → CO2(g) + 2 NaCl(aq) + H2O(l)

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