Answer
0.2928
Work Step by Step
use the molarity formula M1V1 = M2V2 and the givens
M1 = 1.2 M
V1 = 122 mL
M2 = ?
V2 = 500 mL
plug into the formula: (1.2 M)(122 mL) = (M2)(500 mL) and solve for M2 by dividing both sides by 500 mL
M2 = 0.2928