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Explain what happens upon addition to a strong acid to the following equilibrium without using the Le Chatelier principle. What happens upon addition of a strong base?HS- + H20 <---- H2S + OH-
what simple test would you use to identify the possible presence of HCl (aq)? what result do you expect if the solution is HCl (aq)?
Suppose 10.0 g of CH4 is used in a reaction that can theoretically produce 95.8 g of CCl4. What is the percent yield of CCl4 if the reaction produces only 80.0 g of CCl4.
A chemistry student needs of 40 ml chloroform for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of chloroform is 1.48g x cm^-3 . Calculate the mass of chloroform the student should w..
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range. Its solubility in urine depends on the relative amount of protonated and unprotonated forms. A urine sam..
Explain in detail why these bacteria don't begin to excrete this metabolite before using up the phenylalanine in the medium.
What is the name of the haemoglobin variant? Would this haemoglobin demonstrate a left or right shift on an oxygen dissociate curve ? Fully justify your answer.
What is the molar concentration of the excess reactant once this reaction has finished? (40%)
Oxone is sometimes used in keeping swimming pool water clean. Describe using chemical reactions how Oxone keeps swiming pool water clean
Determine all equilibrium concentrations, the pH, the pOH and the percent ionization of each of the following acids in water.
Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. If 927 mL of hydrogen gas is collected by displacement of water at 740.0 mm Hg and 20. °C.
What is the molarity of a solution that is 7.00% by mass magnesium sulfate and has a density of 1.071.
A 52.0mL volume of 0.35M CH3COOH (Ka=1.8x10^-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 31.0mL of NaOH.
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