If 5.00cm³ of 0.20 mol dm^-3Na₂CO₃ was diluted with distilled water to obtain 250 cm³ solution, what is the concentration of the resulting solution?

A.

0.004 mol dm^-3

B.

0.02 mol dm^-3

C.

0.20mol dm^-3

D.

0.40mol dm^-3

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Correct answer is A

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