BIOCHEMISTRY
PH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The number of H+ ion is equal to OH-ions
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The number of H+ ion is greater to OH-ions
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The number of H+ ion is less to OH-ions
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Detailed explanation-1: -In pure water, there are always equal numbers of H + and OH-, and the pH is defined to be neutral. (Note that neutral pH is not always exactly 7.00. If you raise the temperature, more H2O dissociates and the pH will be lower). Acids contribute another source of H + causing the pH to decrease from neutrality.
Detailed explanation-2: -Water (H2O) splits into Hydrogen Ions (H+) and Hydroxyl Ions (OH-). When there are equal parts of Hydrogen Ions (H+) and Hydroxyl Ions (OH-) leading to a 1:1 ratio, pH is neutral (7).
Detailed explanation-3: -Pure water is neutral because the number of positive hydrogen ions produced is equal to the number of negative hydroxide ions.
Detailed explanation-4: -In pure water, the hydrogen ion concentration, [H+], equals the hydroxide ion concentration, [OH-]. These concentrations can be calculated from the equation for the ionization of water. The pH of pure water is 7, the negative logarithm of 1 X 10-7. A neutral solution is one that is neither acidic nor basic.
Detailed explanation-5: -The more [H+] ions that are in solution, the more acidic the solution is. The more [OH-] ions in solution, the more basic the solution is. There is a special property of water that makes it act like an acid or base, depending on what is dissolved in it.