Achemist has synthesized two new dyes based on the molecular structure of plant-based dyes. the lowest energy absorption line for the first dye is light in the visible region at 530 nm. the lowest energy absorption line for the second dye is light in the visible region at 645 nm. based on this evidence, which molecule has the larger homo-lumo gap?
1. the dye that absorbs at 530 nm
2. there is not enough information given to predict
3. the gap is the same, because they both absorb in visible region
4. the dye that absorbs at 645 nm

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Label a-f based on the table using c for concentrated and d for dilute