How does an acid affect pH and H plus concentration when added to water?

Answer 1

It increases H+ concentration and decrease pH according to pH = -log[H+]

If acid is strong (it doesn't have a Ka>1) it will be ionized 100%.

If it's not >1 it will be ionized according its Ka. It's called weak and pH is not so strongly affected as if it were strong

Answer 2

When an acid is added to water, it increases the concentration of hydrogen ions (H+) in the solution, leading to a decrease in pH. Acids release hydrogen ions when they dissociate in water. The increase in hydrogen ion concentration lowers the pH of the solution.

Answer 3

A base has the effect of increasing pH. So water, which in a pure state has a pH of 7, might increase its pH to 9 if a base were added - the exact amount of increase would depend uppn both the specific chemical used, and the concentration of the resulting solution.

Answer 4

The pH of an acid solution is reduced when acid is added to water.

This has to do with chemical equilibrium. When an acid is placed into water, it dissociates, or breaks apart into it's component ions. For strong acids like HCl, 99.997% of the acid breaks apart, so it's considered to break apart 100%. The amount of H+ (sometimes called H3O+ or hydronium) determines how acidic a solution is.

Answer 5

The Ph will decrease. This is because water has a neutral Ph value of 7 so if an acid which has a lower Ph value than water is added to it, the Ph will decrease

Answer 6

It rises from below 7 (acidic) until 7 is reached (= pH of pure water, at infinite dilution)

Answer 7

Nothing. Since water is neutral, the pH remains the same.

Answer 8

The pH number will go to 7, same thing that will happen if an acid is added to an base.

Answer 9

The presence of an acid lowers the pH of the solution in water.

Answer 10

Pure water has a pH close to 7. When you add an acid (solution with a pH less than 7) to pure water, the pH will become less than 7.