Question

The most concentrated solution from among those listed is:
A. 75 mL 0.23M KNO3.

B. 200 mL 0.15M NaNO3.

C. 100 mL 0.25M KCl.

D. 150 mL 0.18M NaOH.

Answer 1

i know it isn't C.

Answer 2

convert all the ml into in l and when u r doing so multiply the amount of moles too from the same number
i.e
u can multiply 200 ml by 5 and get 1L in choice B and after that multiply 0.15 M also by 5 . Then u will gain no. of oles in 1 L
apply the same theory to all answers and u'll get no.of M in each solution when the volume is 1 L
Compare the values of M u got after that for each answer and one with highest value is the solution with highest concentration.
Can u do that :-) ?

Answer 3

i keep getting C/: But i already tried that.. and the answer was incorrect.

Answer 4

@***[ISURU]***