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Ca(OH)2 has a Ksp of 6.5 x 10^-6. (a) If 0.370g of Ca(OH)2 is added to 500 mL of water and the mixture is allowed to come to equilibrium, will the solution be saturate? (b) If 50 mL of the solution from part a is added to each of the beakers shown here(i through iv), in which beakers, if any, will a precipitate form? In those cases where a precipitate forms, what is its identity? i.) 50 mL 1.0M HCL(aq.) ii.) 50 mL 1.0M NaCl(aq.) iii.) 50 mL 1.0M CaCl2(aq.) iv.) 50 mL 0.10M CaCl2
Given the reaction 6CO2+6H2O-> C6H12O6+6O2. What is the total number of moles of water needed to make 2.5 moles of C6H12O6?
Calculate the voltage of the cell 2Ag+(aq) (0.200 M) + Cu(s) Cu2+(aq) (0.080 M) + 2Ag(s) Eocell = 0.460 V
when 1.0g of salicyclic acid is used with 2mL of acetic anhydride, which compound is the limiting reagent?
If a mixture of 41.25 g of aluminum and 58.83 g of oxygen reacts, what mass of aluminum oxide can be formed?
The vapor pressure of a liquid chloroform, CHCl3, is 400.0 torr at 24.1 c and 100.0 torr at -6.3C , what is Hvap of chloroform
Calculate the molar solubility of AgBr in a 1.00 M aqueous solution of ammonia. Then calculate the solubility of AgBr in pure water, and compare the two solubilities. (Ksp for silver bromide is 7.7x10 -13 and Kf for Ag(NH3)2+ is 1.6x10^7)
A certain pesticide is fatal to fish fingerlings at a level of 0.5 parts per million in water. A leaking metal can containing 10.0 kg of the pesticide was dumped into a stream with a flow of 10.0 Liters per second moving at 0.7 km/hr.
A gas cylinder containing 6.38 mol of neon has pressure of 491mmHg at 295k. If 3.22 mol helium is added at constant temp and pressure, what will be the pressure in the cylinder
The peptide Special-K forms an ?-helix that is broken at high temperatures. The fraction of peptide in the ?-helical form (fraction = moles a-helical peptide/total moles of peptide)
Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pack and the environment
Illustrate the structures of the 6 bromoalkenes (with the molecular formula C5H9Br ) that have a branched C chain, and that show neither chirality nor E,Z isomerism.
a corrosion technologist pipetted a 100 ml hard water sample and titrated it with 37.64 ml of 0.01 M EDTA solution for a total endpoint, and 29.32 ml of 0.01 M EDTA solution for a calcium endpoint.
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