Chemistry, 31.10.2019 01:31 kprincess16r
Astock solution was prepared by dissolving approximately 0.4000 g of pure asa in approximately 10 ml of naoh(aq) and heating the solution to a gentle boil. after cooling to room temperature, the solution was poured into a 250-ml volumetric flask and diluted to the mark with di water. the standard solutions (#1-5) were prepared by transferring exactly 1.00 ml, 2.00 ml, 3.00 ml, 4.00 ml, and 5.00 ml, respectively, of stock solution to clean 100-ml vol flasks, diluting to the mark with fecl3 solution, and then filling the appropriately labeled cuvette. before coming to lab, calculate the concentration of asa in cuvettes #1-5.
Answers: 2
Chemistry, 22.06.2019 09:00
Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?
Answers: 3
Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 22.06.2019 14:30
Calculate the mass of carbon in 97.0 g of sucrose c12h22o11
Answers: 3
Astock solution was prepared by dissolving approximately 0.4000 g of pure asa in approximately 10 ml...
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