Multiple Choice
Calculate the mole ratio of HCOONa to HCOOH required to make a buffer with pH of 3.62. Ka of HCOOH is 1.8 × 10-4.
A) 0.122
B) 3.00
C) 0.75
D) 1.22
E) 10.0
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q140: A 100.0 mL sample of 0.18 mol
Q141: What is the molar solubility of AgCl
Q142: Formic acid (HCOOH, K<sub>a</sub> = 1.8 ×
Q143: What is the pH of a solution
Q144: Identify a good buffer.<br>A) a solution containing
Q146: The molar solubility of CuI is 2.26
Q147: How many millilitres of 0.0890 mol L<sup>-1</sup>
Q148: Calculate the percent ionization of nitrous acid
Q149: Describe the solubility of Al(OH)<sub>3</sub> with respect
Q150: A solution is prepared by dissolving 0.23