A solution is 0.0035 M MOH.what is the pH and pOH of solution?
Badd
solve the question
Find the ph
To determine the pH and pOH of a solution, you need to know the concentration of H+ ions or OH- ions in the solution. Since the concentration is not directly given in this case, we can calculate it from the concentration of MOH.
To find the concentration of OH- ions, we need to determine the concentration of the MOH compound. In the given question, it is mentioned that the solution is 0.0035 M MOH. Since MOH is a strong base, it will completely dissociate in water to form one mole of OH- ions for every mole of MOH. Therefore, the concentration of OH- ions is also 0.0035 M.
Now that we have the concentration of OH- ions, we can calculate the pOH of the solution. The pOH is calculated using the formula:
pOH = -log[OH-]
Using the given concentration, we can substitute it into the formula:
pOH = -log(0.0035)
Calculating this logarithm using a calculator, we find that the pOH is approximately 2.455.
To find the pH of the solution, we can use the equation:
pH + pOH = 14
Substituting the known value of pOH into the equation, we get:
pH + 2.455 = 14
Solving for pH, we find that the pH is approximately 11.545.
Therefore, the pH of the solution is approximately 11.545 and the pOH is approximately 2.455.