Question

chemistry homework helpHeavy metals such as calcium can be extracted from water by a precipitation reaction. Hard water has a Ca2+ ion concentration around 4.24x10^-3 M. A solution of sode ash(sodium carbonat, Na2CO3) is used to precipitate the calcium and soften the water. The precipiatie can be removed by filtration. a. write the complete balanced equation and net ionic equation tha occurs when sodium carbonate is added to hard water. Circle the precipitate. B. A 100mL sode ash solution was prepared with 5.0g of sodium carbonate/ MW=106 g/mol what is the concentration in M of the solution? What is the concentration of sodium ions?Message

Answer 1

Step-by-step explanation

Note: The reaction is a double replacement reaction in which two soluble ionic compounds react in an aqueous solution to form an insoluble solid.

In this case, a solution of sodium carbonate, Na2CO3, will contain

The complete balanced equation that occurs when sodium carbonate is added to hard water is