a) 12. How many mL of a 3M KCl solution contains 0.06 KCl moles. Ans: 20mL

Question

Question

Answer 1

Answer #1

given molarity of KCl =3M

given no. of moles of KCl = 0.06 moles

to find volume in ml

as molarity is

Molarity =no. of moles /volume(litre)

or Molarity = no. of moles *1000/volume (ml)

put values

3 = 0.06 *1000/volume(ml)

from here

volume(ml) = 20 ml

thus 20 ml of a 3M KCl solution contains 0.06 KCl moles

Answer 2

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