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To what volume must 300cm3 of 0.60M sodium hydroxide so...

To what volume must 300cm3 of 0.60M sodium hydroxide solution be diluted to give a 0.40M solution?

A.

450cm3

B.

300cm3

C.

200cm3

D.

150cm3

Correct answer is A

From the dilution law

  C1V1 = C2V2

  C1 = Initial Concentration of NaOH = 0.6M

  V1 = Initial Volume of NaOH = 300cm3

  C2 = Final Concentration of NaOH = 0.4M

  V2 = Final Volume of NaOH = ?

  V2 = C1V1C2

  V2 = 0.6×3000.4

  V2 = 450 cm3

Correct Computation as it follows the equation specified