Bellwork 3 Week 2 4th Nine Weeks

For a solution, pH + pOH =

• 7

• 14

• 1.0 x 10^-14

• -log (1.0 x 10 ^-14)

If the pH of a solution is 4.0, what is the pOH?

• 4.0

• 10.0

• 1.0 x 10 ^-4

• cannot be determined from the information

The pH of a solution is 8.43. What is the [H₃O⁺]concentration?

• 3.7 x 10 ^-9

• 1.0 x 10^-8.43

• 2.7 x 10^-6

• 1.0 x 10^-14

If the [H₃O⁺] of a solution is 1 x 10^-3 M, the pH is

• 11

• -3

• 3

• 1

A solution has a pH of 6.9. This solution is _____.

• an acid

• a base

• neutral

Antacid tablets + Stomach acid --> Magnesium salt + water

Mg(OH)₂ + 2HCl --> MgCl₂ + H₂O

Match the compound with its pH:

• pH 7.5

• Mg(OH)₂

• pH 1 - 2

• H₂O

• pH 7

• 2HCl

• pH 10

• MgCl₂

The [H⁺] is orange juice is
0.00020 M.  FInd the pH of orange juice.

• 1
• 3.7
• 10.3
• 13

What is the [H+] if the pH is 4.0?

• 1.0 x 10-10  M
• 1.0 x 10-4  M
• 1.0 x 10-14  M
• 1.0 x 10-7  M

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7
• Acids; pH greater than 7
• Bases; pH greater than 7
• Bases; pH less than 7

If an acid is combined with a base of equal strength, the result will most likely be

• a neutral solution.
• a stronger acid.
• impossible to tell without testing the pH.
• a stronger base