37. Solving a chemistry problem
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26. In what volume of hydrochloric acid Т(HCl)=0.003638 g/ml should a sample of CaCO3 weighing 0.1234 g be dissolved in order to use 19.50 ml of NaOH solution for titration of the acid residue with methyl orange, T(NaOH/CaO)=0.002910 g/ml.
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