Chemistry, 23.05.2021 17:00 amayareyes101
PLEASE help — I’m failing!
Determine each of the following for a 4.23 x 10-3 M solution of HCl:
a. H3o+
b. OH-
c. pH
d. pOH
Answers: 1
![[H _{3}O {}^{ + } ] = 4.23 \times {10}^{ - 3} M](/tpl/images/1342/5189/96305.png)
![[OH {}^{ - } ] = \frac{kw}{[H {}^{ + } ]} \\ [OH {}^{ - } ] = \frac{1 \times {10}^{ - 14} }{4.23 \times {10}^{ - 3} } \\ [OH {}^{ - } ] = 2.36 \times {10}^{ - 12} M](/tpl/images/1342/5189/047bb.png)
![pH = - log[H {}^{ + } ] \\ pH = - log(4.23 \times {10}^{ - 3} ) \\ pH = 2.37](/tpl/images/1342/5189/642c3.png)
![pOH = - log[OH {}^{ - } ] \\ = - log(2.36 \times {10}^{ - 12} ) \\ = 11.63](/tpl/images/1342/5189/08358.png)
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Determine each of the following for a 4.23 x 10-3 M solution of HCl:
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