44. Solving a chemistry problem
331. What is the mass fraction of potassium chloride in the sample, if its sample of 2.5860 g is dissolved in water, the solution is diluted in a volumetric flask to 250.00 cm3. For titration of 20.00 cm3 of this solution, 18.50 0.1000N AgNO3 solution (ƒEKV=1) is spent. (KAgNO3=1.289)?
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