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Explain A distillate was collected between 78-82 degrees C at sea level. Define the reported boiling point was 80 degrees C. State on the correctness of this report.
Thin-layer chromatography - Explain how you should apply a spot of compound to the TLC plate in order to get the best results. How do you know if you have overloaded your TLC plate? Why is this a problem
What is the density of a sample of air (average molar mass is 28.8 g/mol) that has a pressure of 750torr and a temperature of 27 degrees C?
nickel ion forms the complex ion hexaamminenickel (II) with a formation constant of(Kf) of 5.6 x 10 ^8. initially the complex is formed when .002 M nickel sulfate is added to .10 M ammonia.
nitrogen gas reacts with oxygen gas to form nitrogen monoxide gas. How many total electrons are transferred from each molecule of nitrogen or oxygen
explain the basis of your decision and note if the bond(s) formed are ionic or covalent. a.) sodium and fluorine b.) nitrogen and hydrogen c.) silicon and oxygen d.) chlorine and bromine (please explain in details.)
the following reaction will be balanced in a acidicsolution mno-4 h2c2o4 --gt mn2 co2awhat is one of the balanced
You need to dissolve CaCl2 in water to make a mixture that is 30.5% calcium chloride by mass. If the total mass of the mixture is 726.7 g, what masses of CaCl2 and water should be used
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition
Match the quantum numbers with the corresponding shell and subshell or invalid if the quantum numbers are not a valid set.
Consider the two containers below, labeled C and D, one with an ideal gas atom and one with ideal gas molecules, each at the same temperature. The gas molecule has more mass than the gas atom. one container has one molecule
This is maintained by a number of buffers, such as the carbonic acid/bicarbonate system. Write out the acid-base reaction and state qualitatively how this buffer solution resists changes in pH. Given the Ka of carbonic acid, H2CO3 is 4.5 x 10-7.
CO 5) What should be the coefficient of hydrogen, H2, in the following equation in order to make it balanced? 2 Al + 3 H2SO4 ---> Al2(SO4)3 + ? H2
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