10) 1.0 gram of CaCO3 was dissolved in HCl and the solution was made up to 1000 ml with distilled water. 50 ml of the solution required 45 ml of EDTA solution for titration, 50 ml of hard water sample required 28 ml of EDTA and after boiling and filtering required 15 ml of EDTA solution. Calculate Temporary Hardness. A. 288.6 ppm B. 166.6 ppm C. 88.6ppm   11) Calculate the Permanent Hardness for No. 10 A. 111 ppm B. 222 ppm C. 333 ppm   12) Calculate the Total Hardness for No. 10 A. 421.6 ppm

10) 1.0 gram of CaCO3 was dissolved in HCl and the solution was made up to 1000 ml with distilled water. 50 ml of the solution required 45 ml of EDTA solution for titration, 50 ml of hard water sample required 28 ml of EDTA and after boiling and filtering required 15 ml of EDTA solution. Calculate Temporary Hardness.

A. 288.6 ppm
B. 166.6 ppm
C. 88.6ppm

11) Calculate the Permanent Hardness for No. 10

A. 111 ppm
B. 222 ppm
C. 333 ppm

12) Calculate the Total Hardness for No. 10

A. 421.6 ppm
B. 621.6 ppm
C. 521.6 ppm