What is the mass of a piece of platinum if the volume is 1.65 cm and the density is 21.45g/cm? asa

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Why does a cake rise when you bake it? ♡

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.