Question

What is the $pH$ of a $0.000460M$ solution of $Ca{\left( {OH} \right)_2}$ ?

Answer 1

Hint: In science, we have to know that the $pH$, signifying 'capability of hydrogen' or 'force of hydrogen') is a scale used to determine the corrosiveness or basicity of a fluid arrangement. Acidic (arrangements with higher groupings of ${H^ + }$ particles) are estimated to have lower $pH$ esteems than fundamental or basic arrangements.

Complete step by step answer:
In the given details, we have to know that, to calculate the $pH$ concentration of $Ca{\left( {OH} \right)_2}$ . So, that first, we have to find out the $pOH$ value.
By using the following expression,
$pOH = - \log \left[ {O{H^ - }} \right]$
Where,
$[O{H^ - }] = 0.000460M$
Therefore,
$pOH = - \log \left( {0.000460} \right)$
Now,
$pOH = 3.34$
Then, we have to find the $pH$ value by using the following expression,
$pH + pOH = 14$
Rewrite the above expression,
$pH = 14 - pOH$
Applying $pOH$ value in the above equation,
$pH = 14 - 3.34 = 10.66$
Hence,
The $pH = 10.66$ .

Additional Information: The pH scale is logarithmic and conversely demonstrates the convergence of hydrogen particles in the arrangement. This is on the ground that the recipe used to figure pH approximates the negative of the base logarithms of the molar centralization of hydrogen particles in the arrangement. All the more definitely, $pH$ is the negative of the base 10 logarithms of the movement of the ${H^ + }$ ion. The $pH$ of fluid arrangements can be estimated with a glass terminal and a $pH$ meter, or a shading evolving pointer. Then, the estimation of $pH$ is significant in science agronomy, medication, water treatment, and numerous different applications.

Note: We have to know that the $pH$ scale is detectable to a bunch of standard arrangements whose $pH$ is set up by peaceful accord. Essential $pH$ standard qualities are resolved utilizing a focus cell with transaction, by estimating the expected distinction between a hydrogen cathode and a standard terminal like the silver chloride anode.