1st option is correct
P
pH+pOH=14
pOH=14- 5.3 =8.7
pOH= -log[OH-]
From that equation we can write [OH-] =10-pOH
=10-8.7 =1.995×10-9
=2.0×10-9
The pH of black coffee is 5.3. Determine the hydroxide concentration, [OH-], in this solution. a....
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