137. Solving a chemistry problem
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137. Solving a chemistry problem
To 50 ml 0.05 N. NiNO3 (feq = 1/2) added 3 g of cation exchanger in the H form. After equilibrium was established, the concentration decreased to 0.003 mol / L. Determine the static exchange capacity mmol / g (the molar mass of the equivalence factor is ½ M)
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