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The letter designations for the first four sublevels with the number of electrons that can be accommodated in each sublevel are what?
A student determines the mass of a bone to be 23.3751g. A 50 mL graduated cylinder contains 30.3 mL of water. When the bone is placed in the water-filled cylinder,
A solution contains 410.3 g of H2SO4 per litre of solution . If the density is 1.243 g/ml, what will be its molarity and molality.
Initial concentration of CH3NC is 0.0340M. How many minutes does it take for the CH3NC concentration to drop to 0.0300M?
What is the pH of a buffer that results when .60mol NaF is mixed with 100ml of 2.0M HCl and diluted with water to a final volume of 250 ml? (Ka of HF=7.2e-4)
Write a net ionic equation for the reaction between aqueous solutions of ammonia and hydrofluoric acid.
How much alcohol must be burned to generate enough heat to warm 279kJ from 60 degrees fahrenheit to 180 degrees fahrenheit? Express answer in grams. Show entire process
Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with dilute NaOH, Na2SO4, and KCl produces no precipitation. Which of the following cations might the solution contains?
Why do you suspect that 1-propanol is used as the reaction solvent (Base-Catalyzed Dehydrochlorination of 2-Chloro-2-methylbutane), rather than the more common ethanol
what mass of sucrose c12h22o11 nbsptable sugar cane sugar beet sugar or usually just sugar must be added with 550 grams
calculate the total volume of hydrogen gas which would be collected at 760 mm Hg and 25 degrees celsius. Will a second gas be present in the sample collected by water displacement
a balloon filled with helium gas at 1.00 atm occupies 15.6 L. What volume would the balloon occupy in the upper atmosphere, at a pressure of .15 atm
P4S3 -> Dinitrogen pentoxide -> Stannic oxalate -> Zinc cyanide -> Chromic bisulfate -> Fe2(CrO4)3 -> HNO2 -> CoHPO4 ->
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