Smaller the value of Ka, weaker will be the acid.
Weakest acid has strongest conjugate base.
Answer- CN- ( strongest conjugate base)
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4 3 points Consider the given acid ionization constants listed below, identify the strongest conjugate base:...
Use the following acid ionization constants to identify the correct decreasing order of base strengths for the conjugate bases. HF: Ka = 7.2 ´ 10-4 HCN: Ka = 6.2 ´ 10-10 HNO2: Ka = 4.5 ´ 10-4 A. NO2- > F->CN- B. CN- > NO2- > F- C. F- > NO2- > CN- D. NO2- > CN- > F- E. F-> CN- > NO2- F. CN- > F->NO2 -
Question 36 (4.5 points) Identify the acid, base, conjugate base and conjugate acid in the following reaction. Type in equation for the acid-ionization constant, Ka, for the following reaction: HNO2(aq)+ H200) H30t(aq)+ NO2 (aq)
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-
Prepare a buffer by acid-base reactions. Consider how to prepare a buffer solution with pH = 7.35 (using one of the weak acid/conjugate base systems shown here) by combining 1.00 L of a 0.362-M solution of weak acid with 0.325 M potassium hydroxide. pk Weak Acid HNO2 HCIO HCN Conjugate Base NO2 CIO CN K 4.5 x 10-4 3.5 x 10-8 4.0 x 10-10 3.35 7.46 9.40 How many L of the potassium hydroxide solution would have to be added...
Acids & Bases Worksheet 14a (Intro) 4. Identify the sets of acid-base conjugate pairs a. HNO2, NO2 d. HS, H2S b. H2CO), CO e. NHs, NH4 c. HCL, CIO 3. Determine the conjugate acid-base pairs in the following equations HBr(aq) + H20)H3O (aq) + Br (ag) a. b. CHaNH2(aq) + H2O(l)-CHaNH3 (aq) +OH (aq) 6. Write the conjugate base of the following: с. НСО а. НЕr d. HCIO b. Н.СО, 7. Write the conjugate acid of the following c. PO...
Given the following acid dissociation constants, Ka (HNO2) = 4.0 x 10-4 Ka (HCN) = 4.0 x10-10 determine the equilibrium constant for the reaction below. HCN(aq) + NO2 - (aq) CN- (aq) + HNO2(aq)
Put the following in order of INCREASING strength as a base (from weakest to strongest), given that: Ka - 4.9 x 10-10 for HCN Kg = 4.6 x 10-4 for HNO2 KA=3.5 x 10-4 for HF CN NO3" F NO2 F NO2 H2O A Moving to another question will save this response.
Multi part question Tutored Practice Problem 17.2.3 COUNTS TOWARDS GRADE Calculate pH of a weak base/conjugate acid buffer solution A 0.420-M aqueous solution of C5H;N (pyridine) has a pH of 9.40. Calculate the pH of a buffer solution that is 0.420 M in C5H5N and 0.178 M in C;H5NH pH- Consider how to prepare a buffer solution with pH 3.03 (using one of the weak acid/conjugate base systems shown here) by combining 1.00 L of a 0.370-M solution of weak...
12. Consider the acid dissociation constants () shown below. Which of the following is the strongest base? Acid HNO99) HCHO og) HCIO(ag) HCNag) K. 4.6 x 10+ 1.8 x 10 2.9 x 10+ 4.9 X 10-10 (a) NO, (b) CHO (c) Cio (d) CN (e) HCHO 13. Pick the stronger base from each pair. NO or NO CIO or CIO: For CI (a) F, NO2, CIO, (b) F, NO,, CIO." (c) F, NO, CIO, (d) CI, NO, CIO (e) CI,...
(17.2.c.7) Consider how to prepare a buffer solution with pH = 7.53 (using one of the weak acid/conjugate base systems shown here) by combining1.00 L of a 0.357-M solution of weak acid with 0.300 M sodium hydroxide. Weak Acid Conjugate Base Ka pKa HNO2 NO2- 4.5 x 10-4 3.35 HClO ClO- 3.5 x 10-8 7.46 HCN CN- 4.0 x 10-10 9.40 How many L of the sodium hydroxide solution would have to be added to the acid solution of your...