Answer
0.24M.
Work Step by Step
In a dilution we can use this formula to find the concentration or the volume we want:
$C_1 * V_1 = C_2 * V_2$
$6 * 0.010 = C_2 * 0.250$
$C_2 = \frac{0.06}{0.250}$
$C_2 = 0.24M$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.