There are two types of structural isomers (also called constitutional isomers): coordination isomers (also called ionization isomers), which produce different complex ions in solution, and linkage isomers, which differ in the metal-to-ligand linkage. the former can be viewed as containing different complex salt ions. from the following pairs of coordination complexes, identify the one that is a pair of coordination isomers (aka ionization isomers).na2[nibr2cl2] and k2[nibr2cl2][ni(nh3)3br]cl and [ni(nh3)3cl]br[ni(nh3)3(h2o)]so4 and [ni(nh3)2(h2o)2]so4which of the following pairs of coordination complexes are linkage isomers? a. [pt(cl)2(scn)4]4- and [pt(cl)2(ncs)4]4-b. [pt(cl)2(scn)4]4- and [pt(cl)4(scn)2]4-c. k4[pt(cl)2(scn)4] and na4[pt(cl)2(scn)4]

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely. analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry