Determine the ph of each of the following solutions a 0399
Determine the pH of each of the following solutions. (a) 0.399 M benzoic acid (weak acid with Ka = 6.3e-05). (b) 0.558 M boric acid (weak acid with Ka = 5.8e-10). (c) 0.171 M pyridine (weak base with Kb = 1.7e-09).
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Consider two urns with the following composition: Urn 1 contains 5 red and 15 black balls, Urn 2 contains 8 red and 12 black balls.
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If A has a grade value of 4, B has a grade value of 3 and C has a grade value of 1, what is the expected grade of the class? Which law of probability will you use to compute this?
A solution is 0.10 M in Pb(NO3)2 and 0.10M in AgNO3. Solid NaI is added until the second solid compound is on the verge of precipitating. Which compound precipitates first and what is the I^- concentration when the second compound begins to precip
The company originally repaired radios and other household appliances when it was founded over 70 years ago. Over the years, the company has expanded, and it is now a reputable manufacturer of various specialty electronic items
Calculate the percent ionization of phenol (HC6H5O) in solutions of each of the following concentrations (Ka = 1.3e-10.) (a) 0.181 M % (b) 0.482 M % (c) 0.733 M %
an atomic element has 20 electrons write the ground state electron configuration of the element
A tractor tows a plane from its airport gate, doing 8.9MJ of work. How far does the tractor move the plane
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