3.00 mL of a 3.95 x 10-4 M solution of oleic acid is
diluted with 7.00 mL of
petroleum ether, forming
solution A. Then 2.00 mL of
solution A is diluted with
8.00 mL of petroleum ether,
forming solution B. What is
the concentration of solution
B?
2.57 x 10-5 M.
2.57 x 10-6 M
2.37 x 10-5 M.
2.37 x 10-6 M
2.17 x 10-5 M
none of these​