The hydronium ion concentration in a sample of rainwater is found to be 1.7 x 10(-6) M at 25 degrees Celsius.

The hydronium ion concentration in a sample of rainwater is found to be 1.7 x 10(-6) M at 25 degrees Celsius. What is the concentration of hydronium ions in the solution?

That is 10 to the negative 6 power

Solutions

Expert Solution

The concentration of water is constant thus the water dissociation expression, Which is known as ion-product constant is expressed as follows:

Kw =[H30+][OH-] = 1.0 x 10-4

The value of Kw is use to calculate the concentration of H3O+ or OH- in the solution.

The value of Kw, depends only on temperature.

According to the given statement, the solution has [H+] = 1.7x 10-6 M and

Calculate the concentration of hydroxide ion as follows:

= 1 x 10-14 M2 /1.7 x 10-6 M

= 5.9 x IO-9 M

Therefore, the hydroxide ion ( HO-) concentration is = 5.9 x IO-9 M

5.9 x IO-9 M

Junaid answered 1 year ago

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