Concentration of unknown is 0.18 mass of nickel sulfate hexahydrate used: 4.0430g

Using the concentration, calculate the number of grams of nickel sulfate hexahydrate in your 50.00 mL unknown.

Using the concentration, calculate the number of grams of just nickel ion in your 50.00 mL unknown.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

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?

How many moles of al3+ ions are in 1.25 moles of al2o3