What is the value of Ky for the formate anion, HCOO ? Ka(HCOOH) = 2.1 x...
What is the value of Kp for the formate anion, HCOO? Ka(HCOOH) = 2.1 * 104
What is the value of Ky for the cyanide anion, CN? Ka(HCN) = 6.2 * 10-10 Multiple Choice points _ οοοοε Ο Ο 16 και 10-5 Book Ο 3.8 10-5 References Ο 6.2 x 104 Ο 38, 104 Ο 1610-4
Consider a titration of formic acid (HCOOH, Ka = 1.8 x 10-4) with NaOH. The experiment is halted when half of the acid has been titrated. Which statement correctly describes the composition of the titration solution? Check all that apply. Group of answer choices The concentration of HCOOH is greater than the concentration of H+. The concentration of HCOO− is approximately equal to the concentration of HCOOH. The concentration of formate ions (HCOO−) is smaller than the concentration of H+....
please show all work neatly
5. (2 pts) Consider the following acids and their dissociation constants HPO4-2(aq) + H2O.. H3O"(aq) + PO4-3(aq) Ka-2.2x 10.13 HCOOH(aq) H20 H3O (a) HCOO (aq) Ka = 1.8x10-4 a. Which is the weaker acid, HPO42 or HCOOH? b. What is the conjugate base of, HPO42 or c. Which acid has the weaker conjugate base? d. Which acid produces more ions? 6. (2 pts) Write a balanced equation for the neutralization of H3PO4(aq) and NaOH(aq) (3...
Given that Ka for HCOOH is 1.8 � 10-4 at 25 �C, what is the value of Kb for COOH� at 25 �C? Kb=5.56 x10^-11 Given that Kb for CH3CH2NH2 is 1.7 � 10-9 at 25 �C, what is the value of Ka for CH3CH2NH3 at 25 �C? Ka=
Formic acid (HCOOH) has a pka = 3.75. What is the value of the equilibrium constant K for this reaction: HCOO (aq) + H20(1) =HCOOH(aq) + OH-(aq)? O A 1.77x10-4 O B More information is needed to answer O C 5.62x10-11 O D 4.63x10-8 Unanswered Solution pH A Homework - Unanswered Solution par 5 6 7 8 9 0
a) Calculate the pH of a 0.8M solution of HCOOH (Ka = 1.8 x 10-4) in 0.4M Li+ HCOO-. b) Calculate the pH of a solution of 0.4M NH4Cl and 0.5M NH3 (pKa NH4+ = 9.2). c) Calculate the pH of a titration of 100 mL 1.5M HCl when 75 mL 1.25M NaOH has been added. d) What volume of 1.25M NaOH must be added to 100 mL of 1.5M HCl to reach equivalence?
If the Ky of a weak base is 2.1 x 10-6, what is the pH of a 0.33 M solution of this base? pH =
Ka values: HCI HNO3 H2SO4 strong strong strong 1.3 x 10-2 7.5 x 103 7.1 x 10-4 4.5 x 10-4 1.7 x 10-4 CH3COOH CsH5NH+ H2CO3 H2PO4 HSO4- H3PO4 HF HNO2 HCOOH 1.8 x 100 5.9 x 10-6 4.2 x 10-7 6.2 x 10-8 5.6 x 10-10 4.9 x 10-10 4.8 x 10-11 4.8 x 10-13 NH1+ HCN HCO3- HPO4 6) (20 points) What is the pH of 0.065 M H2CO3 (carbonic acid)? 7) (20 points) What is the pH...
3) Hypobromous acid (HOBr) is a weak monoprotic acid, with Ka = 2.1 x 10^-9 . a) What is the value for pH for a 0.0424 M aqueous solution of hypobromous acid? [12 points]