pH vs. H3O+

If the pH decreases from 10 to 8, how would you expect the H₃O⁺ concentration to change?

• H3O+ INcreases 10-fold

• H3O+ DEcreases 10-fold

• H3O+ INcreases 100-fold

• H3O+ DEcreases 100-fold

A stream has a pH of 4. If its concentration is diluted to 10,000th of its original concentration, what is the new pH?

• 0

• 1

• 7

• 8

Which pH change represents a hundredfold increase in the concentration of H3O+ ?

• pH 5 to 7

• pH 3 to 1

• pH 13 to 14

• pH 4 to 3

As the pH of a solution is changed from 3 to 6, the concentration of hydronium ions

• A) increases by a factor of 3

• B) increases by a factor of 1000

• C) decreases by a factor of 3

• D) decreases by a factor of 1000

In a solution with a concentration of 0.001M and a pH of 3 has a pH change to 5, what is the new concetration

• 0.01

• 0.001

• 0.0001

• 0.00001