DE Unit 8 (Acids and Bases) Review Quizizz

When dissolved in water, acids produce:

• bases
• salts
• hydrogen ions
• hydroxide ions

What is the conjugate acid of HCO₃^1-?

• CO₃

• H₂CO₃

• CO₃^2-

• H₂CO₃^2-

In this rxn: HBr + NH₃ --> NH₄⁺ + Br^- the acid and its conjugate base, respectively are...

• NH₃ and NH₄⁺

• NH₃ and Br^-

• HBr and NH₄⁺

• HBr and Br^-

Which is the strongest acid and why? HClO₄, HClO_2, HClO

• HClO, Cl is very electronegative

• HClO₄, the atom connected to the H is smaller (Cl vs O), so the bond is more polar

• HClO₄ , Cl is electronegative and has the most number of oxygen atoms

• HClO, the atom connected to the hydrogen is larger (Cl vs O)

Which of these pH values would indicate that a solution is a weak base?

• 4
• 5.6
• 8
• 13

Estimate the pH of a 1.5 x 10^-8 M solution of HCl.

• 5.85

• 7.85

• 8.15

• 9.5

The [OH^-] = 4.0 x 10^-9, what is the pH of the solution?

• 9.0

• 5.7

• 8.3

• 4.3

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic
• slightly acidic
• strongly basic
• slightly basic

The following is true for Lewis acid and base EXCEPT

• CO₂ is a Lewis acid
• H₂O is Lewis base
• CO₂ is a electron pair acceptor
• H₂O is a lone pair acceptor

KOH has a pOH of 3.0, what is the [OH^-]?

• 0.01 M

• 0.001 M

• 0.0001 M

• 0.1 M