Problem

Problem

What is the concentration of

\text{NaCl}

, in

\text{mol dm}^{-3}

, when

10.0\text{ cm}^3

of

0.200\text{ mol dm}^{-3}

\text{NaCl}

solution is added to

30.0\text{ cm}^3

of

0.600\text{ mol dm}^{-3}

\text{NaCl}

solution? a. 0.450 b. 0.300 c. 0.500 d. 0.800

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