076. Solving a chemistry problem
📂 Chemistry
👤 Derkach
Product Description
1. Titration with phenolphthalein of a sample weighing 0.4478 g, consisting of Na2CO3, NaHCO3, NaCl, required 18.80 ml of 0.2112 M HCl solution. When titrating with methyl orange, 40.00 ml of acid solution was consumed for the same mass. Calculate the mass fraction (%) of Na2CO3 and NaHCO3 in the mixture.
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