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OpenStudy (anonymous):
A student measures the pH of a solution to be 6.8. Which should the student add if she wants to decrease the pH of the solution? NaCl H2O HF KOH
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OpenStudy (anonymous):
some one help me please (:
OpenStudy (anonymous):
post it in the chemistry group u may get the answer
OpenStudy (anonymous):
The student would want to add KOH. This is the most basic of all the chemicals you listed because of the presence of a hydroxide group.
OpenStudy (anonymous):
Remember that H+ ions make something acidic while OH- ions make it basic. Therefore, chemicals with hydroxide groups are typically bases.
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