what is the equilibrium constant for the acid-base reaction between ethanol and acetic acid? the pkaof acetic acid is 4.756,and the pkaof theethyloxonium ion is -2.4.be sure your answer has the correct number of significant figures...
(Acetic Acid: pKa = 4.74) What is the pH of the buffer prepared by adding 20 mL of 0.20 M sodium hydroxide to 50 mL of 0.10 acetic acid? (pKa of acetic acid = 4.76) A buffer solution is prepared by adding 15.00 g of ...
What is the pH of distilled water? Acids and Bases: The 'pH' level of a substance tells whether it is an acid, base, or neutral. The pH scale runs from 0 to 14. Readings below 7 indicate acids, while those above 7 are bases. A pH of 7 is considered to be 'neutral.' Answer ...
Chemistry is the branch which deals with the detailed study of matter, its properties, how and why atoms/substanced combine or separate to form other substances. Understand all the basic concepts of Organic, Inorganic, and Physical Chemistry with detaile
Acetic acid, the acid that gives vinegar its sour taste, is a weak acid that dissociates into acetate and hydronium ions in solution. CH3CO2H + H2O <--> CH3CO2−+ H3O+ Typical household vinegar is a 0.9 M solution with a pH of 2.4. Using the data, it's possible to calculate ...
Which of the following four compounds is the most acidic (i.e., has the lowest pKa value)? How can i know whether solution is acidic or not and then what type of acid? What is the OH- if the H+ is observed to be 6.5? Is it acidic, basic or neutral?
where HA is the acid and A- is the conjugate base. Ka = [A-][H3O+] / [HA][H2O] This is used to calculate pKa, the logarithmic constant: PKA = – log10 Ka The larger the pKa value, the smaller the dissociation of the acid and the weaker the acid. Strong acids have a pKa of...
What is the endpoint volume (Ve) of the titration of 50.00 mL of 0.025 00 M MES with 0.100 0 M NaOH, where MES is a weak acid with pKa = 6.27? Additionally, describe the behavior at each of the four stages of the titration: Va = 0, 2, 5, 10, 10.1, 11, 12, ...
The pH of distilled water immediately after distillation is 7, but within two hours after distillation, it has absorbed carbon dioxide from the atmosphere and become acidic with a pH of 5.8.
This makes acetic acid a monoprotic acid with a pKa value of 4.76 in aqueous solution. The concentration of the solution greatly affects the dissociation to form the hydrogen ion and the conjugate base, acetate (CH3COO−). At a concentration comparable to that in vinegar (1.0 M), the pH...