The molar absorptivity of a compound at 500 nm wavelength is 252 m-1cm-1. Suppose one prepares a solution by dissolving 0. 00140 moles of a solute in enough water to make a 500. 0 ml solution. What would be the absorbance in a 7. 00 mm pathlength cell?.

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.

How are brightness and size related when it comes to stars

Rawls says that justice sometimes requires the sacrifice of things like freedom of speech for the sake of greater economic equality. true or false