Determine the pH of a 1.2×10^−2 M solution

You must kidding? If you know how to do one of these you know how to do them all.

Sorry. I just want to be sure that I am doing it right.

To determine the pH of a solution, we need to know the concentration of hydrogen ions (H+) in the solution. In this case, we are given the concentration of the entire solution, which is 1.2×10^−2 M.

The pH scale measures the acidity or basicity of a solution, ranging from 0 to 14. A pH value of 7 is considered neutral, pH values below 7 are acidic, and pH values above 7 are basic.

To calculate the pH of a solution, we can use the equation:

pH = -log[H+]

Where [H+] represents the concentration of hydrogen ions.

In this case, the concentration of hydrogen ions is the same as the concentration of the solution.

So, we can substitute the given concentration into the equation:

pH = -log(1.2×10^−2)

To calculate this, we use logarithmic properties and convert the concentration to scientific notation:

pH = -log(1.2) + log(10^-2)

The logarithm of 1.2 can be found using a calculator or logarithm tables. Taking the negative value of the logarithm will give us the positive value of pH.

Once you have the logarithm, you can calculate the pH.