Limestone (CaCO₃,100.1 g/mol)is present in many sedimentary rocks.Suppose the limestone in a 5.000 g rock sample is dissolved in hydrochloric acid,and then 33.30 mL of 0.1500 M Na₂C₂O₄ is added to precipitate the Ca²⁺ ions as CaC₂O₄ (128.1 g/mol).What is the mass percent limestone in the original rock sample?

Question

Quizplus · Accepted Answer

The Answer of Limestone (CaCO₃,100.1 g/mol)is present in many sedimentary rocks.Suppose the limestone in a 5.000 g rock sample is dissolved in hydrochloric acid,and then 33.30 mL of 0.1500 M Na₂C₂O₄ is added to precipitate the Ca²⁺ ions as CaC₂O₄ (128.1 g/mol).What is the mass percent limestone in the original rock sample?

Limestone (CaCO3,100

Limestone (CaCO₃,100