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Derive the following expression:
hv ge βe Bz.
hv ge βe Bz.
A chemistry student seeks advise of his Professor before performing the below reaction. However, the Professor does not approve it. He neither quotes that the high temperature (100 C) or long duration (40 h) as an issue. He simply mentions "difficult to handle" reaction. Could you briefly explain the Professor's concern? *
How would I draw a diagram to show how KBr(s) dissolves in water
If 20 ml of 0.10m naoh was used for the titration of aspirin, calculate the mass of the aspirin.
Calculate the maximum mass of NaIO3 that can be dissolved in 3.00L of 0.200M AgNO3 solution without forming a precipitate
Develop a free energy equation pertaining to a single well potential for a homogeneous phase and a double well potential for two coexistence phases of a colloidal system. Draw the corresponding chemical potentials and explain the significan
Is there a natural ingredient to use in cosmetic soaps to replace pentasodium pentetate
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Zn2+ waswas elated from resin using column chromatography. The initial concentration after eluting of Zn2+ = 0.9mol/l.The zn2+ was made up to 250 ml in A volumetric flask(stock solution)
25ml of stick solution was titrate with 0.02M EDTA.the volume of EDTA used is 18.9ml. What volume of stock is need to prepare 50ml of 0.5Mg/l Zn?
Zn2+ waswas elated from resin using column chromatography. The initial concentration after eluting of Zn2+ = 0.9mol/l.The zn2+ was made up to 250 ml in A volumetric flask(stock solution)
25ml of stick solution was titrate with 0.02M EDTA.the volume of EDTA used is 18.9ml. What volume of stock is need to prepare 50ml of 0.5Mg/l Zn?
A) What mass of oxygen must be used for complete combustion of 1 kg of an oil fuel with a 87% carbon and 13% hydrogen content?
B) What mass of flue gas would be produced for 1 kg of fuel completely combusted?
B) What mass of flue gas would be produced for 1 kg of fuel completely combusted?
1. A copper metal is (100.0±0.1) cm long, (9.8±0.1) cm wide, and (2.51±0.03) cm thick. Assuming the metal is rectangular, calculate its approximate volume and density if the mass of the metal is (253.0±0.2) g.
2. Consider the scenarios below. a. In an experiment, the volume of 0.10 M solution obtained in 5 successive measurements are 10.3 mL, 10.4 mL, 10.6 mL, 10.2 mL and 10.1 mL. If the least count on the burette is 0.1 mL, what is the relative error of the measurements made? b. A student took 10 measurements of the mass of a solid in a laboratory. The student calculated the average mass together with the precision and had (3.04 ± 0.06) g. What does it mean?
2. Consider the scenarios below. a. In an experiment, the volume of 0.10 M solution obtained in 5 successive measurements are 10.3 mL, 10.4 mL, 10.6 mL, 10.2 mL and 10.1 mL. If the least count on the burette is 0.1 mL, what is the relative error of the measurements made? b. A student took 10 measurements of the mass of a solid in a laboratory. The student calculated the average mass together with the precision and had (3.04 ± 0.06) g. What does it mean?
