You have at your lab bench the following chemicals: nah2po4 (s), na2hpo4 (s), na3po4 (s), nh4cl(s), nach3coo(s), 1.0 m ch3cooh(l), 1.00 m nh3, 1.00 m naoh, 1.00 m hcl, and deionized water. you also have standard glassware available. describe how you would make 500 ml of buffer with a ph of 5.00 using only pure materials and deionized water so that the total concentration of the conjugate acid/base pair is 0.200 m

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?