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Kaleen
Questions (15)
The following reaction was studied at −10°C.
2 NO(g) + Cl2(g) → 2 NOCl(g) The following results were obtained where the rate
1 answer
1,608 views
What are the units for the rate constant for a second and third -order rate law?
1 answer
530 views
Use one of the identities
cos(t + 2πk) = cos t or sin(t + 2πk) = sin t to evaluate each expression. (Enter your answers in
2 answers
1,638 views
Calculate to four significant figures, the energy of a photon emitted when an electron falls from n=5 to n=4
1 answer
388 views
Determine the maximum number of electrons that can have each of the following designations:
6f: 4d: 2f: 5d(yz): 3d:
1 answer
952 views
It takes 208.4 kJ of energy to remove one mol of electrons from the atoms on the surface of rubidium metal. If rubidium metal
1 answer
1,732 views
What is the energy of a mole of UV photons having a wavelength of 11 nm?
1 answer
434 views
Who was the 19th president?
1 answer
449 views
Calculate [CO32- ] in a 0.019 M solution of CO2 in water (H2CO3). If all the CO32- in this solution comes from the reaction
1 answer
2,029 views
Calculate the pH of a 0.053 M (C2H5)2NH solution (Kb = 1.3 10-3).
2 answers
2,232 views
What mass of KOH is necessary to prepare 799.2 mL of a solution having a pH = 11.65?
1 answer
490 views
Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of
1 answer
4,878 views
A 0.39 M solution of a weak acid is 3.0% dissociated. Calculate Ka.
1 answer
766 views
Monochloroacetic acid, HC2H2ClO2, is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead
1 answer
1,299 views
A 11.8 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
1 answer
692 views
