The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0°C is 4.9 × 10-10. What is the pH of an aqueous solution of 0.080 M sodium cyanide (NaCN) ?
A) 11.11
B) 2.89
C) 1.3 × 10-3
D) 7.8 × 10-12
E) 3.9 × 10-11
Correct Answer:
Verified
Q100: Z- is a weak base. An aqueous
Q101: Calculate the pH of a 0.0787 M
Q102: What is the pOH of a 0.035
Q103: Calculate the pOH of a 0.0627 M
Q104: Determine the pH of a 0.35 M
Q106: A 7.0 × 10-3 M aqueous solution
Q107: The Ka of hypochlorous acid (HClO)is 3.0
Q108: The base-dissociation constant of ethylamine (C2H5NH2)is 6.4
Q109: What is the concentration (in M)of hydronium
Q110: Calculate the molarity of hydroxide ion in
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents