Multiple Choice
Calculate [H+] in a 0.026 M solution of HCN, Ka = 6.2 ×10-10.
A) 6.5 ×10-7 M
B) 2.5 ×10-9 M
C) 6.2 ×10-10 M
D) 4.0 ×10-6 M
E) 1.5 ×10-4 M
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q61: Calculate [H<sup>+</sup>] in a 1.2 × 10<sup>-5</sup>
Q62: Calculate the pH of a 2.0 ×
Q63: A 0.050 M aqueous solution of a
Q64: Which of the following indicates the most
Q65: If you know K<sub>b</sub> for ammonia, NH<sub>3</sub>,
Q67: If solid sodium cyanide (NaCN) is dissolved
Q68: The following three equations represent equilibria that
Q69: HOAc K<sub>a</sub> = 1.8 ×10<sup>-5</sup><sup><br></sup>H<sub>2</sub>CO<sub>3 </sub> K<sub>a1</sub>
Q70: Calculate the pOH of a 0.10 M
Q71: Which of the following aqueous solutions will