98. Solving a chemistry problem
3. How many grams of CaCO3 did the sample contain if, after treating a sample of 50.00 cm3 of it with 0.2000 N HCl, 10.00 cm3 of NaOH was consumed? The titration of 25.00 cm3 of HCl requires 24.00 cm3 of NaOH solution.
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