Which solution contains the largest number of moles of chloride ions? A) 25.00 mL of 0.400M KCI
B) 10.0 mL of 0.500M BaCl2
C) 30.00 mL of 0.100M CaCl2
D) 4.00 mL of 1.000M NaCl
E) 7.50 mL of 0.500M FeCl3

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.