Achemist prepares a solution of nickel(ii) chloride (nicly) by measuring out 61.3 umol of nickel(ii) chloride into a 200 ml volumetric flask and filling the flask to the mark with water. calculate the concentration in umol/l of the chemist's nickel(ii) chloride solution. round your answer to 3 significant digits. x 5 ? explanation check 2009 mew econ aires reserved. terms of use

How many miles of water are produced if 5.43 mol pbo2 are consumed

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Plz mark brainliest 30 points 1) 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?