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the titration of acetic acid with sodium hydroxide can be expressed as the combination of two reactions: the acetic acid reacting with water, and the sodium hydroxide reacting with hydronium ion.
have a buffer solution composed of 4.00 mol of acid and 1.75 mol of the conjugate base. If the pKa of the acid is 2.20, what is the pH of the buffer?
What is the pH of a solution which is 0.025M in weak base and 0.035 M in the conjugate weak acid (Ka=7.1 x 10^-6)c
At a Concentration of 1M, the weak acid HN0 is 2% ionized and the pH of the solution is 1.7 . What happens when KNO2(s) is dissolved into the solution: The extent of HNO2 ionization = Increases or d
Explain why the absolute value of the work done by a process can never be greater than the absolute value of the Helmholtz free energy change.
A racquetball court is 20 ft wide. If we consider only motion along this direction and treat the ball as a particle in a box, if the ball weighs 1.4 ounces, what quantum number corresponds to a racq
Beta-carotene is organge. This means it absorbs blue lgiht. It has conjguated systme which allows the pi-electrons to delocalize over teh length of the molecule.
Irradiation of di-t-butyl ketone in a solution of carbon tetrachloride produces pivaldehyd (2,2-dimethylpropanal), chloroform, isobutene, t-butyl chloride, and carbon Monoxide. Suggest a mechanism w
Outline a mechanism for the phtolysis of methyl butyrate assuming the reaction follows a patter similar to 2-pentanone.
Gas phase irridation of 2-pentanone produces acetone and ethylene in about 90% yield along with 10% 1-methylcyclobutanone. Accoutnt for the formation of these three products
In the formation of diacetylferrocene, the product is always the one in which each ring is monoacetylated. Why is no diacetylferrocene produced in which both acetyl groups are on the same aromatic r
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
How could you convert butanenitrile into the following compounds? Write each step showing the reagents needed. (b) Butylamine and (c) 2-Methyl-3-hexanone
How could you convert each of the following compounds into butanoic acid? Write each step showing all reagents. (a) 1-Butanol (b) 1-Bromobutane (c) 1-Butene
Write balanced molecular equations for the complete neutralization of each of the acids with the base. Include physical states for all species. Acids: hydrochloric acid and sulfuric acid. Base sodiu
How could you convert butanoic acid into the following compounds? Write each step showing the reagents needed. (a) 1-Butanol (b) 1-Bromobutane and (c) Pentanoic acid
Determine all equilibrium concentrations, the pH, the pOH and the percent ionization of each of the following acids in water.
Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these c
While questioning him, you learn that he consumed two bottles of beer at lunch. The alcohol (ethyl alcohol/ethanol) content in a 12 oz. bottle of beer is about 5%. The man's weight is 150 lbs and he
In the laboratory we may prepare a sodium hydroxide solution by dissolving 2.0 grams of sodium hydroxide into enough DI water to give a total volume of 500ml. What are the [OH-], the [H3O+] and the
A zero-order reaction has a constant rate of 1.50×10?4. If after 55.0 seconds the concentration has dropped to 4.50×10?2, what was the initial concentration?
In the boron trifluoride etherate-catalyzed reaction of acetic anhydride and salicylic acid to produce acetylsalicylic acid, or aspirin, anhydrous conditions prevail. So, what serves as the base, as