Explain what is the % caco3 in the sample

Reference no: EM13649528

You are asked to determine the Calcium content of a sample (1.0 0g). You dissolve this sample in 12 M HCl then diluted it with DI water to 100.0 mL. You take 10 mL sample solution and titrate it with EDTA (0.0500M ; 15 mL in addition to the blank solution of Mg2+).

a. How many moles of CaCO3 (MM = 100.1 g/mole) can be in this sample if it is pure CaCO3?

b. What is the % CaCO3 in this sample?

c. What is the color of the indicator of Eriochrme Black T used in this experiment and briefly describe how it works?

Reference no: EM13649528

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