The Ka for ch3co2h is 1.8 x10^-5 and the Ka for ch2chco2h is 1.4x10^-3. what is the Kb of the weaker of their two respective conjugate bases?
a. 2.1 x10^-8
b. 7.1 x10^2
c. 6.7 x 10^-10
d. 6.7 x 10^4
e. 7.1 x 10^-12
The Ka for ch3co2h is 1.8 x10^-5 and the Ka for ch2chco2h is 1.4x10^-3. what is...
The Ka for ch3co2h is 1.8 x10^-5 and the Ka for ch2chco2h is 1.4x10^-3. what is the Kb of the weaker of their two respective conjugate bases? a. 2.1 x10^-8 b. 7.1 x10^2 c. 6.7 x 10^-10 d. 6.7 x 10^4 e. 7.1 x 10^-12
What is the most likely identity of the species undergoing
titration?
a) hydrobromic acid (HBr); Ka = 1.08 x 109
b) acetic acid (CH3CO2H); Ka = 1.8 x 10-5
c) ammonia (NH3); Kb = 1.8 x 10-5
d) sodium acetate (NaC2H3O2); Kb = 5.6 x 10-10
13 12 10 8 pH 7- 4 2 10 30 50 70 90 110
Given that Ka for HCN is 6.2 x10-10 at 25 °C, what is the value of Kb for CN at 25 C? Number Given that Kb for NH3 is 1.8 x 10 at 25 °C, what is the value of Ka for NH4 at 25 C? Number
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=
Consider the following acids and bases: HCO2H Ka = 1.8 × 10-4 HOBr Ka = 2.0 × 10-9 (C2H5)2NH Kb = 1.3 × 10-3 HONH2 Kb = 1.1 × 10-8 Choose substances from the following list that would be the best choice to prepare a pH = 9.0 buffer solution. (Select all that apply.) HONH2 KHCO2 HCO2H (C2H5)2NH (C2H5)2NH2Cl HOBr NaOBr HONH3NO3
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...
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Which acid is the strongest? a. formic acid, HCO2H, Ka - 1.8*10-4 b. hydrofluoric acid, HF. pka = 3.45 oxalic acid. (CO2H)2. pka - 1.23 c d. propanoic acid, C2H5CO2H, Ka = 1.4x10-5
Given the following acids and their corresponding Ka values, predict which acid would have the strongest conjugate base? a. All will be equally strong. b. HC2H3O2 Ka = 1.8 x 10-5 c. HF Ka = 7.2 x 10-4 d. HOCl Ka = 3.5 x 10-8 e. HNO2 Ka = 4.0 x 10-4
QUESTION 4 The Ka of HCHO2 is Ka=1.8 x 10-4. What is the value of Kb for CHO2"? Please enter answer in format 1E-2
Using the data given below for acids, which of the conjugate bases is the strongest base? Acid Ka HF 3.5 x 10-4 HOAc 1.8 x 10-5 HCHO2 1.8 x 10-4 HClO 2.9 x 10-8 A. OAc- and CHO2- B. OAc- C. F- D. ClO- E. CHO2-