Chemistry, 09.08.2019 23:30 rosanaboyd7
Calculate the number of grams of ammonium chloride that must be added to 2.00 l of a 0.500 m ammonia solution to obtain a buffer of ph = 9.20. assume the volume of the solution does not change as the solid is added. kb for ammonia is 1.80×10−5.
Answers: 2
![pOH = pKb + log\frac{[BH+]}{[B]}](/tpl/images/0173/9475/1dae4.png)
![4.8 = 4.74 + log\frac{[NH4Cl]}{[0.500]}](/tpl/images/0173/9475/4bd8c.png)
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Calculate the number of grams of ammonium chloride that must be added to 2.00 l of a 0.500 m ammonia...
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