Calculate the energy of an electron in the highest occupied molecular orbital. assume the porphyrin ring is modeled as a square box for which l=1nm.

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

Which type of microscope would allow the viewer to see ribosomes inside a cell?

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.