Acid/bases

Which of the following is a base?

• orange juice
• water
• vinegar
• dishwashing detergent

 Which of the following is an acid?

• shampoo
• baking soda
• orange juice
• water

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5

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

What is not a conjugate base to acid pair? (HINT...follow the H⁺!!!)

• OH^- : H₂O
• H₂O : H₃O⁺
• CN^- : HCN
• HSO₄^- : SO₄^-2

The conjugate base of H₂SO₄ is ___. (HINT...bases are proton acceptors)

• H₂SO₃
• HSO₄^-
• H₃SO₄⁺
• SO₄^-2

In this reaction...
CH₃NH₂ + H₂O --> CH₃NH₃⁺ + OH^-
CH₃NH₂ can be classified as which of the following? (HINT...follow the H⁺!!!)

• A Brønsted-Lowry base
• A Brønsted-Lowry acid
• A Lewis acid
• An Arrhenius acid

Which of the following canNOT be amphoteric?
(HINT...acts as an acid and a base...you know? either accepting or donating that H⁺ ion?)

• H₂O
• H₂PO₄
• H₃O⁺
• O^-2

The pH of a solution is 4.00.  What is the hydroxide ion concentration?
(HINT...pH + pOH = 14 and
[OH^-] = 10^-pOH)

• [OH^-] = 1 x 10^-4
• [OH^-] = 1 x 10^-6
• [OH^-] = 1 x 10^-10
• [OH^-] = 1 x 10^-14

What element do all acids contain?

• H
• O
• C
• He

Tags

NGSS.MS-PS1-1