Question

the H+ concentration of the solution is 1×10^-7 mol/l the pH value of solution ​

Answer 1

Answer:

The pH value of solution is 7

Answer 2

$\mathcal{\gray{\underbrace{\blue{GIVEN:-}}}}$

✍️ In a solution,

• $\rm{\green{[H^{+}]\:=\:1\times{10}^{-7}\:mol.L^{-1}\:}}$

$\mathcal{\gray{\underbrace{\blue{TO\: FIND:-}}}}$

• It's pH .

$\mathcal{\gray{\underbrace{\blue{SOLUTION:-}}}}$

✍️ We have know that,

$\pink\checkmark\:\rm{\purple{\boxed{\red{pH\:=\:-\:\log\:[H^{+}]\:}}}}$

$\rm{\implies\:pH\:=\:-\log[1\times{10}^{-7}]\:}$

$\rm{\implies\:pH\:=\:-\log[{10}^{-7}]\:}$

$\rm{\implies\:pH\:=\:-(-7)\log[10]\:}$

• log (10) = 1

$\rm{\implies\:pH\:=\:7\times{1}\:}$

$\rm\purple{\implies\:pH\:=\:7\:}$

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$\rm{\pink{\therefore}}$ The pH of the solution is “7” .