MEDALS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

Casey is completing an experiment that requires 300 ml of potassium chloride (PCl) at a concentration of 0.2 M. But Casey's lab only stores potassium chloride at concentrations of 0.1 M and 0.5 M. How much 0.1 M PCl will Casey have to mix with 0.5 M PCl to make 300 ml of 0.2 M PCl?

Question

MEDALS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

Casey is completing an experiment that requires 300 ml of potassium chloride (PCl) at a concentration of 0.2 M. But Casey's lab only stores potassium chloride at concentrations of 0.1 M and 0.5 M. How much 0.1 M PCl will Casey have to mix with 0.5 M PCl to make 300 ml of 0.2 M PCl?

anonymous · Answer

can u help me plz

amoodarya · Answer

x from .1 m
y from .5 m
x(.1)+y(.5)=(x+y)(.2)
x+y=300 ml