Astudent dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 l solution. what is the molarity of the solution?
0.17 m
0.28 m
2.5 m

What is the mass of sodium in 3 moles of sodium chloride

Apump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d