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A solution contains 1 x 10-3 M Fe2+ and 2 x 10-10 M Fe3+. As the pH of the solution is raised, which iron hydroxide will precipitate first (i.e., ferrous hydroxide, Fe(OH)2(s) or ferric hydroxide, Fe(OH)3(s)). At what pH will this occur? Ignore complex formation and potential redox reactions.
list three acid, bases, and salt commonly used in therapeutic processes.
What is the pH of the solution which results from mixing 25 mL of 0.30 M HF(aq) and 25 mL of 0.30 M NaOH(aq) at 25 ºC? (Ka of HF = .00072)
Explain different moderators used in nuclear reactors
525 mm of Hg; neon, 65 mm of Hg, and nitrogen, 250 mm of Hg. What is the total pressure of the mixture?
If 50.0 mL of 0.150 M CaCl2 is added to 50.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl precipitate?
student takes 116. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
Calculate amount of Energy released in formation of one mole of BaO (Not Lattice energy). The radius of barium ion is 1.35 A and Radius of oxide ion
A 25.00 mL sample of a sodium hypoclorite liquid bleach is placed in a 250 mL volumetric flask and diluted to the mark. A 25.00 mL aliquot of this solution is placed in a 250 mL Erlenmeyer flask.
As a bromine molecule approaches perpendicular to the negatively charged pi cloud of the carbon-carbon double bond, its bonding electrons are repelled away from the bromine atom nearer the double bond
is submerged in 7.81g of water at 52.5 degrees C in an insulated container. what is the final temperature of both substances at thermal equilibrium.
Explain how mass effects act to lower the carbonyl frequency, as well as how inductive and hyperconjugation effects act to raise the carbonyl frequency of aldehydes relative to ketones.
the system achieves thermoequilibrium at atmospheric pressure. Assume no heat loss to the surroundings. What is the final temperature of the combined metal sheets?
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