Ultra high-performance liquid chromatography (uhplc) uses sub 2.0 μm diameter particles and pressures up to 100 mpa to achieve increased resolution or decrease the run time while maintaining adequate resolution. when run on a 50.0-mm-long × 3.0-mm-diameter phenyl uhplc column, a compound has a retention time of 0.560 min and a width at half height of 2.02 s. calculate the number of theoretical plates, n, and the plate height, h, for this column under the given conditions.

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.