which acid has the largest Ka and why? 1)CH3CH2O-H 2)CH3CH2CH2-H 3)CH3CO2-H
Strengths of acids and bases. Chemistry a. Identify the base from the following list with the largest ?b, and write your reasoning for your choice IO-2, BrO-3, CIO-4 b. Identify the base from the following list with the largest ?b, and write your reasoning for your choice Br-,NH-2,OH- c. Identify the acid from the following list with the largest ?a, and write your reasoning for your choice CH3CH2O–H, CH3CH2CH2–H, CH3CO2–H
3.) A buffer containing acetic acid and sodium acetate has a pH of 5.25. The Ka value for CH3CO2H is 1.80 × 10-5. What is the ratio of the concentration of CH3CO2H to CH3CO2-?
Which Brønsted-Lowry base has the strongest conjugate acid? NO3 CN OF CH3CO2
W THE PENCERO .99 37. Consider the reaction of acetic acid in water CH3CO2H(aq)+H2O(l) = CH3CO2 (aq)+H30 (aq) where K=1.8x10-5 Which two bases are competing for the proton? Which is the stronger base? Why do we classify the acetate ion (CH3CO2) as a weak base? Use an appropriate reaction to justify your answer. 38. To summarize, the conjugate base of a weak acid is a weak base and the conjugate acid of a weak base is a weak acid (weak...
Which is the correct synthesis of 6-methyl-3-heptanone from 3-methyl-1-butene? Acid and water, then Cr03/H2SO4, then CH3CH2CH2 MgBr, then acid, then CrOz/H2SO4 Acid and water, then C+03/H2S04, then CH3CH2CH2MgBr, then acid HB:/ROOR, then Mg/ether, then propanal, then acid, then CrO3/H2SO4 HBr, then Mg/ether, then propanal, then acid, then CrOz/H2SO4 Question 21 (4 points) Which of the following statements is true? Aromatic compounds release more energy per pi bond upon saturation than simple alkenes. Aromatic compounds have longer C-C bonds than alkanes....
1. Which is a stronger base ethanol (CH3CH2OH) or ethoxide anion (CH3CH2O-ve) and why. 2. Rank the following bases from strongest to weakest and explain why you put the bases in that order. a) diisopropyl amide b) ethanethiolate c) ethoxide anion d) tert-butoxide anion
1. Which one of the following compounds is a Bronsted-Lowry base? a) CH3CO2 b) NH3 c) H2SO4 d) HCl e) CH3 2. Which compound do you expect to have the lowest pKa? a) HCl b) NH3 c) CH3CH2OH d) CH4 e) H2SO4 3. Which compound do you expect to have the lowest pKa? a) HCl b) NH3 c) CH3CH2OH d) CH4 e) H2SO4 4) What is the strongest base? a) CH3COOH b) CH3COO- c) CH3CH2OH d) CH3CH2O-
A) A buffer containing acetic acid and sodium acetate has a pH of 5.45. The Ka value for CH3CO2H is 1.80 × 10-5. What is the ratio of the concentration of CH3CO2H to CH3CO2-? [CH3CO2H]/[ CH3CO2-] = _________ B) What is the pH change when 29.6 mL of 0.117 M NaOH is added to 95.4 mL of a buffer solution consisting of 0.123 M NH3 and 0.179 M NH4Cl (Ka for ammonium ion is 5.6x10^-10.) pH change =_______
RM-Q3 . Which of the following has the largest acid equilibrium constant, Ka? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a benzoic acid b ortho-nitrobenzoic acid с para-methylbenzoic acid d para-methoxybenzoic acid BBB RM-Q11 Which of the following amines is most basic? NH2 NH2 NH2 NH2 & Co NO2 H3CO NO2 OCH A B с D Select an answer and submit. For keyboard navigation, use the up/down arrow keys to...
22) What is the [CH3CO2-1/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.79? Ka = 1.78 x 10-5 for CH3CO2H. A) 0.94:1 B) 2.0:1 C) 1.1:1 D) 0.50:1 23) Which is the best acid to use in the preparation of a buffer with pH = 3.3? A) HNO3 B) HOI (Ka = 2.0 x 10-11) C) HNO2 (Ka = 4.5 x 104) D) HIO3 ((Ka = 1.7 x 10-1) 24) What is the percent dissociation of...