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What would be the pH of a 3x10-4 M solution of acetic acid (CH3COOH) given its acid dissociation constant Ka = 10-4.75? What are the concentrations of CH3COOH and CH3COO-? What would those concentrations be if you added HCl or NaOH to bring the pH to 3.2 or 7.35, respectively?
Styrene, a compound substance used to make Styrofoam® cups and insulation, contains 92.3 and 7.7 by mass and has a molar mass of 104 . What's the empirical formula?
Camphor (C10H16O) is a natural compound found in the wood of camphor laurel, an evergreen native to southeast Asia. Borneol (C10H18O) and isoborneol (C10H18O) are similar to camphor
When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 38 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
Calculate the number of grams of sulfuric acid in 1 gallon of battery acid if the solution has a density of 1.33g/mL and is 38.9\% sulfuric acid by mass.
Calculate the cell potential for the following reaction that takes place in an electrochemical cell
A 2.00 gram sample of unknown gas is placed into a 296 mL flask at 17°C and found to have a pressure of 717 torr. What is the pressure (in kPa) if the sample is moved into a 200 mL flask at 352K
Write equations for the reaction of the glyceride written in question 1 above with each of the following: a. an aqueous solution of sodium hydroxide b. hydrogen in the presence of a catalyst and at elevated temperature and pressure c. a 5% solutio..
For some enzyme reactions (for example, the hydrolysis of cAMP by phosphodiesterase in vertebrate retinal cones)the enzyme is present in large quantities,so that e0/s0 is not a small number.Fortunately,there is an alternate derivation of the Micha..
A gas under a pressure of 74 mmHg and at a temperature of 75C occupies a 500.0-L container. How many moles of gas are in the container?
What is the volume occupied by 0.265mol of helium gas at a pressure of 1.28atm and a temperature of 307K
need to generate ammonia from ammonium chloride to use in a reaction. should you use sodium bicarbonate or sodium carbonate?
how do you caclulate the theoretical yield? I began using 2.00 g of Salicylic acid, 5.0 mL of acetic anhydride, and added 5 gtts of concentrated sulfuric acid.
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