Multiple Choice
Which one of the following weak acids is the strongest?
A) HCN (Ka = 4.9 × 10-10)
B) HClO (Ka = 3.0 × 10-8)
C) HNO2 (Ka = 4.5 × 10-4)
D) HF (Ka = 6.8 × 10-4)
Correct Answer:

Verified
Correct Answer:
Verified
Q61: Propionic acid (CH<sub>3</sub>CH<sub>2</sub>COOH)has a Ka = 1.3
Q62: Match the following.<br>-Arrhenius theory<br>A)the species that results
Q63: What is the conjugate acid of water?<br>A)H<sub>2</sub>O(l)<br>B)H<sub>3</sub>O<sup>+</sup>(aq)<br>C)OH<sup>-</sup>(aq)<br>D)H<sup>+</sup>(aq)<br>E)O<sub>2</sub><sup>-</sup>(aq)
Q64: The classification of an acid or a
Q65: C<sub>5</sub>H<sub>5</sub>N + H<sub>2</sub>CO<sub>3 </sub> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB34225555/.jpg" alt="C<sub>5</sub>H<sub>5</sub>N
Q67: A buffer solution<br>A)is a salt solution.<br>B)maintains pH
Q68: Which compound produces an acidic solution when
Q69: What is the concentration of a phosphoric
Q70: Write the balanced chemical equation for a
Q71: To prepare a buffer using sodium phosphate,which