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the concentration of hydroxide ion in a water sample is found to be 2.5 times 10^-6 M. Identify the nature of the solution. |
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Answer» SOLUTION :The concentration of `OH^-` ION in a water sample is found to be `2.5 times 10^-6 M` `pOH=-log_10[OH^-]` `pOH=-log_10[2.5 times 10^-4]` `=-log_10[2.5]-log_10[10^-6]` `=-0.3979-(-6)` `=-0.3979+6` `pOH=5.6` pH=8.4, shows the nature of the solution is BASIC We know that, `pH=pOH=14` pH+5.6=14 pH=14-5.6 pH=8.4 |
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