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Determine the concentrations (in M) of acetic acid and sodium acetate in 0.2 M 'acetate' buffer, pH 6.0. The pKa for acetic acid is 4.76.
A 0.00445 mol sample of a weak acid, HY, is dissolved in enough water to form 0.0976 L of solution. If the pH of the solution is 4.02, what is the Ka of HY? Use E notation with 3 significant figures.
Why is a large steroid molecule able to cross the cell membrane when a small molecule cannot?
A fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called
detailed reaction mechanism for the acid-catalyzed hydrolysis of lactose to its component monosaccharides
how many moles of NaCl would be made by combining 20,000 moles of Na with 2 moles of Cl
An aqueous solution of nickel acetate is electrolyzed for 3 hours with a 1.8 ampere current. What mass of nickel is produced?
A glucose solution contains 51.0 g of glucose in 475 g of water. What is the freezing point?
1.0678g of a standard iron(ii) ammonium sulfate, (NH4)2Fe(SO4)2. 6H202 requires 35.50mL of permanganate solution for titration. calculate the molary of the permanganate solution.
Write the formula of the reactants and products-including the symbols for the state- (s), (l), (g), (aq)- then balance the equation.
The dimensions of aluminum foil in a box for sale in supermarks are 66 2/3 tards by 12 inches. the mass of the foil is 0.83kg. If its density is 2.70g/cm^3
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
If you fill the larger tank with oxygen to a pressure of 115 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
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