What is the molarity [M] of a solution created by dissolving 193.1 grams of KCl to create a 2.0 L solution?

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

When the volume and number of particles of a gas are constant which of the following is also constant

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?