What concentration of fe3+ is required to begin precipitation of fe(oh)3 if the ph of the solution is 3.48? ksp of fe(oh)3 is 2.79×10-39?
Draw fischer projection formulas for the products likely to be obtained from the bromination of (z)-2-hexene with br2/dichloromethane. identify the chiral centers with asterisks and label each center as r or s.
Give the synthesis, physical and chemical properties and the uses of the following: a. Alkane b. Alkene c. Alkyne d. Aromatic compound
Give another example of a scientific investigation that would require both observations and experiments
In each reaction box, place the best reagent and conditions from the list below. (a reagent may be used more than once.)
An electrochemical cell is constructed such that on one side a pure zn electrode is in contact with a solution containing zn2 ions at a concentration of 102 m. the other cell half consists of a pure pb electrode immersed in a solution of pb2 ions that has a concentration of 104 m. at what […]
A sample of hydrated magnesium sulfate has a mass of 4.052 g. After it is heated, it has a mass of 1.979 g. What is the percentage by mass of water in the hydrate? Use the formula mc011-1.jpg 10.99% 20.73% 22.51% 51.16%
TOTAL OF 8 QUESTIONS. 2 ARE DISCUSSION QUESTIONS. 6 MULTIPLE CHOICE. SEE ATTACHMENT. 1. A contractor was hired to do some maintenance work inside a grain silo. Assuming the facility is at sea level, what is the minimum level of oxygen necessary for the contractor to carry out his or her task without using a […]
Calculate the atomic radius of iridium., given that Ir has an FFC crystal structure, a density of 22g/cm3 and atomic weight of 192.2 g/mol.
Calculate the theoretical number of moles of copper that should have plated out onto the brass piece.
