If co(nh3)63+ has a λmax at 440 nm, calculate δe for the complex. a) 2.72 x 10-4 kj/mol b) 4.52 x 10-2 kj/mol c) 2.72 x 10 2 kj/mol d) 2.72 x 10 5 kj/mol e) 2.72 x 10 9 kj/mol

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?