So 6.02*10^22 is avogadro constant, which is the amount of atoms in one mole. If you look Xenon up in the periodic table you will find it's mass given <span>131,293, which is grams per 1 mole.
The question requires us to use the dilution formula , where and are the stock concentration and volume respectively, then and are the dilute concentration and volume respectively.
a. = 1.5 M KCI, =0.20M KCl, =250ml KCl
b.
To prepare the solution 33.3ml of 1.5M KCl is diluted to a total final volume of 250ml.