If pond water has a pH of 5, the hydroxide concentration would be; 10^-5 M. l0^-

Question

If pond water has a pH of 5, the hydroxide concentration would be; 10^-5 M. l0^-10 M. 10^5 M. 10^9 M. 10^-9 M Due to a sudden hormonal imbalance, a patient's blood was tested and shown to have a pH of 7.5. What does this pH value mean? This is more acidic than normal blood. It represents a weak alkaline fluid. This is caused by a release of large amounts of hydrogen ions into the system. the reaction H_2CO_3 HCO_3^- + H^+ is pushed to the left. This is probably caused by excess CO_2 in the blood.

Explanation / Answer

Answer 1. The correct answer will be

e. 10-9

It is given that the pH is 5. It means the negative log of H+ ion is 5.

since pH +pOH =14, so 5 +pOH = 14.

Hence pOH = 14-5 = 9

and pOH and pH are denoted as inverse log; pOH will be therefore 10-9 M.

Answer 2 ; This represents a weak alkaline fluid.

Since pH of blood is 7.2 whilch is just p.2 ujits higher than the neutral pH so it is just the slight alkaline fluid

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