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How many grams of Cu and what volume of O2 gas will be obtained if 18.4 ampere electric current is passed through the electrolytic cell of CuSO4for 1 hour and 42 minutes between graphite electrodes at 208 K temperature and 1 bar pressure? (Cu=63.5u O=16u) How to calculate?
Compute the morality of Ba (OH)2 solution if 29.02 mL were required to reach a phenolphthalein endpoint with a 0.4853 gram sample of primary standard potassium hydrogen phthalate (204.23g/mol).
To extract quinine from an aqueous solution, what pH should be used and why? I'm not sure if you use both pKa's or just one.
magnesium sulfate mgso4 is added to 469 ml of 0.040 msodium hydroxide naoh until a precipitate just forms. how many
A liter and a half of water is boiling at 105.3C. Assuming standard pressure, how much mass KI must be in water
Iridium-192 has a half-life of 74 days. What fraction of a sample of this isotope will remain after 222 days
can the solubilities of formate pbcho22 pkso 6.70 pka 3.75 and copper iodate cuio32 pkso 7.13 pka 0.79 be made
How many miles could you drive for $3.90 if the gas mileage of your car is 14.0 km/liter of gasoline and the price of gasoline is $0.96/gal
Explain what mass of sodium thiosulfate pentahydrate crystals, Na2S2O3.5H2Ois needed to prepare 500 ml of .1 M Na2S2O3 titrant solution
If a single pane glass window on a house has an area of 0.5 m^2 and is 3mm thick, what is rate of heat loss through this window on a cold winter day when the inside surface of the glass is 15?C and the outside surface is 5C
when ionic compounds crystallize from a supersaturated solution the crystallization front typically travels at a
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, is a chiral compound, contains ONLY one functional group, and is a(n) alkane.
followed by acidification, gives compound Z with molecular formula C4H6O4, CH3CO2H and CO2. Both X and Y are optically active, while Z is optically inactive. Propose structures for X, Y and Z that are consistent with these data.
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