What is the concentration of

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

What is the concentration of NaCl\mathrm{NaCl}, in mol dm−3\mathrm{mol\,dm^{-3}}, when 10.0 cm310.0\,\mathrm{cm^3} of 0.200 mol dm−30.200\,\mathrm{mol\,dm^{-3}} NaCl\mathrm{NaCl} solution is added to 30.0 cm330.0\,\mathrm{cm^3} of 0.600 mol dm−30.600\,\mathrm{mol\,dm^{-3}} NaCl\mathrm{NaCl} solution? (1) 0.450 (2) 0.300 (3) 0.500 (4) 0.800

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