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A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definately present, which were definately absent, and which may or may not have been present in the orginal mixture?
Ag+, Hg2^2+, Pb2+, Sn2+, Mg2+, Al3+, Li+, Ca2+ , Cu2+, Hg2+, Ni2+, Sb3+
When a sample of oxalic acid (H2C2O4), which is a diprotic acid, is titrated with 0.250 M potassium hydroxide solution, 24.44 mL of the potassium hydroxide solution are required to neutralize the acid. How many grams of oxalic acid where present i..
A 9-mm Xian short-barrel experimental pistol is fired and the reacting, exploding gases push the bullet down the barrel of the gun. The pressure is recorded as the bullet accelerates to the exit.
If an air bubble was initially in the buret tip but was dispensed during the back titration of the unreacted HCl. As a result of this technique error
25 mL of 0.100 M AgNO3 are mixed with 35 mL of 0.0500 M K2CrO4. (a) Calculate the concentrations of each species at equilibrium.
Iron(III) in water reacts with Hydrochloric acid B. Iron(III) in water reacts with Ammonium Hydroxide Then identify the geometry of the iron(III) complex in water and the complex ions produced in the above reactions
What is the average speed of the sprinter if A sprinter set a high school record in track and field, running 200. M in 22.0s .express your answer in kilometers per hour?
Hydrochloric acid HCL, completely ionizes when dissolved in water. Calculate the PH of a solution containing
Calculate the molarity of a solution of glycerol made by dissolving 38.000 mL glycerol at 15C(density: 1.2656g/mL) in enough water to make 230.00 mL of solution.
Describe the various strategies for the excretion of nitrogenous wastes employed in higher animals (chordates), both human and non-human.
Calculate the osmolarity of this solution. my answer is 0.499 osm. Is that correct? 2*(.1249) + 1 (.2499)
What mass of potassium bromide residue remains if 500.0 mL of 0.200 M potassium bromide solution are evaporated to dryness.
Calculate the equilibrium concentration of HC2O4- in a 0.20 M solution of oxalic acid.
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