Question

Refer to the attachment
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Answer 1

Answer:

A IS THE CORRECT OPTION

Explanation:

WE ARE ASKED TO CALCULATE THE pH OF A SOLUTION WITH A KNOWN HYDROGEN ION CONCENTRATION

TO CALCULATE THE pH OF A SOLUTION FROM A KNOWN H+ WE CAN USE THE FORMULA

pH= - Log(H+)

THAT IS THE pH OF A SOLUTION IS THE NEGATIVE OF THE LOGARITHM OF THE HYDROGEN ION CONCENTRATION.

USING THE FORMULA -

pH = -Log(1.0 × 10-5) = 5

pH = ACIDIC