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Explain why do chefs use zinc and copper cookware to preserve the green color in vegetables? Explain how does zinc and copper keep the chlorophyll compounds from oxidizing?
How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
Using 250 mL of 0.250 M solution of CoCl2 and distilled water, how would you prepare 100 mL of 0.005M solution of CoCl2. What absorbance would you expect the solution to have
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 1.00*10^2 102 mL of solution and then titrate the solution
I take 250.0 mL of 0.25 M NaCl and mix it with 500.0 Ml of 0.100 M NaCl. what is the concentration of NaCl in the mixture
a. the carbon dioxide of the atmosphere being a nonmetallicoxide and acid anhydride has a low solubility in rainwater
What is the wavenumber in cm-1 for the HOMO to LUMO transition predicted by PM3, What value of ? can you infer, that would bring the HMO method into agreement with the more advanced Extended Huckel method?
Which of the following has the substances arranged from lowest boiling point to highest A. NaCl, C2H6, C4H10, H2O B. NaCl, H2O, C2H6, C4H10 C. C2H6, C4H10, H2O, NaCl D. C2H6, C4H10, NaCl, H2O
A 0.3000 g sample of carboxylic acid is burned in oxygen producing 0.5349 g of CO2 and 0.2202 g of H20. Find out the empirical formula of the carboxylic acid.
bromothymol blue is a common acid-base indicator. it has a ka equal to 1.6 x 10-7. its unionized form is yellow and its
This phenomenon has some very practical applications in the power plants, particularly nuclear power plants. How does this help the overall efficiency of a nuclear power plant?
In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C.
What is the relationship of the successive equivaleance point volumes in the titration of a polyprotic acid
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