A solution ofNaOH and CaCO3 is to be produced by mixing an alkali solution (84.526% water and the rest NaOH and Na2CO3) with a commercial lime solution ((Ca(OH)21CaO) that contains CaCO3 as an impurity). The product has the composition given in Table P4.7.

Per 100 kg of product, and considering that we have an excess of Ca(OH)2 of 4.45%, determine:

1. The amount and composition of the NaOH1CaCO3 solution.

2. The amount and composition of the commercial lime solution.

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Table P4.7 Product Composition Species (%) CaCO3 13.48 Ca(OH)2 0.61 NaCO3 0.28 NaOH 10.36 HO 75.27