What is the volume of a rectangle or prism with the height of 4 cm a width of 2 cm and a length of 5 cm a: 13 cubic centimetersb: 30 cubic centimeters c: 40 cubic centimeters d: 50 cubic centimeters

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?

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o