Calculate How many moles of NO2 forms when 0.356 moles of the reactant completely reacts. 2 N2Os(g) -> 4NO2 (g) + O2. (g)

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?

What happens when light is scattered?

Ab c or d ? i’m not sure what the answer is