The calcium in a 300.0 mL sample of natural water was determined by precipitating the cation as CaC204. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.9021 g. The mass of the crucible plus Cao (56.077 g/mol) was 27.1346 g. A) What is the mass of the weighing form? B) Calculate the concentration of Ca (40.078 g/mol) in the water in units of grams per 100 mL.

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.