Which solution contains the largest number of moles of chloride ions?
a. 30.00 ml of 0.100m CaCl₂
b. 10.0 ml of 0.500m BaCl₂
c. 25.00 ml of 0.400m KCl
d. 4.00 ml of 1.000m NaCl
e. 7.50 ml of 0.500m FeCl₃