Chemistry, 10.11.2019 03:31, giigigihyys2111
You are asked to prepare 500. ml of a 0.100 m acetate buffer at ph 5.00 using only pure acetic acid (mw=60.05 g/mol, pka=4.76), 3.00 m naoh, and water. answer the following questions regarding the preparation of the buffer.1. how many grams of acetic acid will you need to prepare the 500 ml buffer? note that the given concentration of acetate refers to the concentration of all acetate species in solution.2. what volume of 3.00 m naoh must you add to the acetic acid to achieve a buffer with a ph of 5.00 at a final volume of 500 ml? (ignore activity coefficients.)3. pour the beaker contents into a 500 ml volumetric flask. rinse the beaker several times and add the rinses to the flask. swirl the flask to mix the solution. add water to the mark to make the volume 500 ml. stopper the flask and invert how many times to ensure complete mixing?
Answers: 1
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Chemistry, 22.06.2019 12:00, Unknowndragon42
Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon
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Chemistry, 22.06.2019 21:20, 50057543
Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction
Answers: 2
You are asked to prepare 500. ml of a 0.100 m acetate buffer at ph 5.00 using only pure acetic acid...
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