Chemistry, 27.10.2020 18:00 bellapimienta8
predict what would happen to the rate of reaction if you used solid potassium iodate crystals in parts b and c instead of a solution of potassium iodate. Explain the reasons behind your prediction g
Answers: 1
Chemistry, 21.06.2019 23:50, scavalieri2421
How will the emission of an alpha particle affect the atomic number of an atom
Answers: 3
Chemistry, 22.06.2019 05:40, Maryjasmine8001
Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml
Answers: 2
Chemistry, 22.06.2019 20:00, 20calzoy
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
predict what would happen to the rate of reaction if you used solid potassium iodate crystals in par...
Mathematics, 03.03.2021 19:30
Mathematics, 03.03.2021 19:30
Mathematics, 03.03.2021 19:30
English, 03.03.2021 19:30
Mathematics, 03.03.2021 19:30
Mathematics, 03.03.2021 19:30
Mathematics, 03.03.2021 19:30