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Bohr's model is used to treat emission lines of hydrogen lamp. It may also be used to study emission lines in mercury lamp or krypton lamp, the other two lamps that are used in this lab.
What is the expected Nernst equation, in mV, for each decade change in the hydrogen ion concentration for a glass elecrode
When operational in the determination of the calorimeter constant, a DC power source reads 3.60 volts and 2.65A. The resulting thermogram has a slope of 0.0438 degrees C/
List the order of nucleotides in the DNA strand complementary to the section with the sequence [TTAGACGAC]. (2) How many codons does this represent?
The triprotic acid H3A has ionization constants of Ka1 = 7.5× 10-2, Ka2 = 7.8× 10-9, and Ka3 = 6.9× 10-12. Calculate the following values for a 0.0580 M solution of NaH2A Calculate the following values for a 0.0580 M solution of Na2HA.
Enough of a monoprotic acid is dissolved in water to produce a 0.0194 M solution. The pH of the resulting solution is 6.26. Calculate the Ka for the acid.
The formula weight of compound X is 14,200 g/mol How many total mg of X are there in the panda pancreas?
You are a laboratory assistant for your chemistry course. There are 250 students in the course, and each needs to use 25 mL of a 0.15 M solution of copper sulfate.
what are some examples of situations where recrystallization would not be suitable to purify an organic compound
Consider the titration of 30 mL of .025 M NH3 with .025 M HCl. Calculate the pH after the following volumes of titrant have been added.
The addition of iodide (NaI or KI) often catalyzes SN2 reactions o alkyl chlorides or bromides. explain how by showing reaction equations of what happens.
Molecules are mobile in a gas and some reactions can be run in the gas phase. Give several reasons solutions are preferable for synthetic reactions.
Calculate the densities of of each of the following gases in g/L at ATP: a) C3H8; b) NH3; c) Cl2; d) Ar.
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