Saturday
September 5, 2015

Homework Help: Chemistry

Posted by Anonymous on Wednesday, February 20, 2013 at 8:59pm.

A 100 L reaction container is charged with 0.724 mol of NOBr, which decomposes at a certain temperature** (say between 100 and 150 oC) according to the following reaction:

NOBr(g) ↔ NO(g) + 0.5Br2(g)

At equilibrium the bromine concentration is 1.82x10-3 M. Calculate Kc (in M0.5)

i got .067

At a certain temperature* (probably not 25 C), the solubility of silver sulfate, Ag2SO4, is 0.018 mol/L. Calculate its solubility product constant for this temperature. SIG. FIG. (required because number is small)

*Solubility product constants are very temperature sensitive. They are generally reported at 25 C. Not necessarily using this temperature allows me some flexibility.

i got 2.73e-5

At a certain temperature, the solubility of potassium iodate, KIO3, is 53.0 g/L. Calculate its solubility product constant for this temperature.
.059

Please help!

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