Chemistry, 27.10.2020 18:00 savannahbrookec2896
An aqueous solution contains dissolved and . The concentration of is 0.50 M and pH is 4.20. Calculate the concentration of in this buffer solution.
Answers: 1
and 
. The concentration of 
in this buffer solution. 
![pOH = pKb + log \dfrac{[C_6H_5NH_3^+]}{[C_6H_5NH_2]}](/tpl/images/0844/0707/50da5.png)
![9.8 = 9.42 + log \dfrac{[C_6H_5NH_3^+]}{(0.50)}](/tpl/images/0844/0707/bf827.png)
![9.8-9.42 = log \dfrac{[C_6H_5NH_3^+]}{(0.50)}](/tpl/images/0844/0707/9d3f2.png)
![0.38 = log \dfrac{[C_6H_5NH_3^+]}{(0.50)}](/tpl/images/0844/0707/766dd.png)
![10^{0.38} = \dfrac{[C_6H_5NH_3^+]}{(0.50)}](/tpl/images/0844/0707/5b383.png)
![2.399 = \dfrac{[C_6H_5NH_3^+]}{(0.50)}](/tpl/images/0844/0707/e5aa8.png)
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An aqueous solution contains dissolved and . The concentration of is 0.50 M and pH is 4.20. Calculat...
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