18/10/2022

## What is the pH of iron ore?

[8] found the optimum pH value of 7.0 for hematite ore flotation process (Fig.

What is the pH value of sodium hydroxide solution?

The pH of a solution of sodium hydroxide is 9.

What happens when you add NaOH to a buffer solution?

When a strong base (OH-) is added to a buffer solution, the hydroxide ions are consumed by the weak acid forming water and the weaker conjugate base of the acid. The amount of the weak acid decreases while the amount of the conjugate base increases.

### How can you change the pH of the solution?

Pure or distilled water has a pH level of 7, which means it is neutral. If you want to increase the pH of water, you must add an alkaline substance, such as baking powder, to it. If you want to decrease the pH of water, you add an acidic substance, such as lemon juice, to it.

Why is 14 the highest pH?

A solution of a strong alkali, such as sodium hydroxide, at concentration 1 mol dmâˆ’3, has a pH of 14. Thus, measured pH values will lie mostly in the range 0 to 14, though negative pH values and values above 14 are entirely possible.

Why NaOH is used in water treatment?

A: Sodium hydroxide is used in the treatment of drinking water to raise the pH of the water to a level that minimizes the corrosion. Raising the pH remains one of the most effective methods for reducing lead corrosion and minimizing lead levels in drinking water.

#### Is NaOH acidic or alkaline?

1 Answer. NaOH is a strong base.

How do you calculate the pH of water after adding NaOH?

To calculate pH, apply the formula pOH = -log[OH-]. Work out -log[0.1] = 1. Next, apply the formula pH + pOH = 14.

How do you find the pH of water after adding NaOH?

Calculate the pH of a 0.1 M NaOH solution. Alternatively we can calculate pOH = – log [OH-]= – log [10-1] = 1 and remembering that pH + pOH = 14 we get pH = 14 – 1 = 13.