Question

pH of a pond is measured as 4.0 what is the hydrogen and hydroxide ion concentration of the pond? ​

Answer 1

The Pond has pH as 4 which means it is Acidic in nature. So , the Hydrogen ion concentration will be more than the Hydroxide ion concentration..


Hope it helps.....

Answer 2

Answer:  H+ = 10 ^-4 M

OH- = 10 ^-10 M

Concept:

The scale used to determine the acidity or basicity of an aqueous solution by measuring the hydrogen ion concentration is called pH. The Acidic solutions contain higher concentrations of H+ ions therefore, the pH value is lower than 7. Whereas, the basic solutions contain lower H+ concentration the pH value is higher than 7.

Water has a neutral pH ie. 7

pH=-log(H+)

pOH=-log(OH-)

pH+ pOH = 14

Given: The pH of pond is 4 (acidic)

To find: The hydrogen and hydroxide ion concentration of the pond.

Explanation:

Water has a neutral pH ie. 7

pH=-log(H+)

pOH=-log(OH-)

pH+ pOH = 14

The pH of pond is 4 (acidic)

The H+ ion concentration will be.

pH=-log(H+)

4=-log(H+)

antilog 4= H+

H+ = 10 ^-4 M

The OH- concentration will be,

pH+ pOH = 14

4+pOH=14

pOH=10

pOH=-log(OH-)

10=-log(OH-)

antilog 10=OH-

OH- = 10 ^-10 M

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