Last week you determined what wavelength of light works best for measuring p-nitrophenol in solution using a spectrophotometer. you then determined the extinction coefficient for p-nitrophenol in solution. what is the third parameter we will optimize for our protocol before we go on to our actual experiment?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final