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A 2.0L kettle contains 116g of calcium carbonate as boiler scale. Explain how many times would the kettle have to be completely filled with distilled water to remove all of the deposit at 25οC?
Electrolysis of a solution containing an unknown metal ion with a +3 charge deposited 0.159 g of the metal on the cathode over a period of 2.00 minutes at a constant current of 2.00 A. What is the molecular weight of the unknown.
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
A 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethylenediamine (en). the Kf for Cu(en)2^+2 is 1*10^20. What is the concentration of Cu^+2 (aq) in this solution
When you standardized the Sodium thiosulfate, what molarity of Na2S2O3 did you observe for each of your 3 trials.
The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule.
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures, including hydrogen atoms
During an experiment: preparation of benzoic acid from benzonitrile what is the percent yield of benzoic acid: volume of benzonitirle: 2.0 mL and mass of benzoic acid obtained: 1.10 g
two hypothetical ionic compounds are discovered with the chemical formulas acl2 and bcl2 where a and b represent
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
Explain why hydrogen which has one electron in its lowest state, should in principle be a metallic conductor in its solid state whereas helium which has two electrons in its lowest energy state should be an insulator.
how does the experimental empirical formula of hydrated alum compare to the actual empirical formula? make sure to list
57.0 mL of 3.50 M sodium hydroxide is combined with 35.0 mL of 1.80 M magnesium chloride. What mass in grams of solid forms?
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