Answer to Question #185533 in General Chemistry for fred

Question

Hello, can you please provide the complete solutions of these questions. The answers are already given.

2. A 50.0-mL water sample was determined for hardness in terms of

CaCO3. It required 40.0-mL of 0.0100M EDTA solution for titration.

Calculate the total hardness in parts per million (ppm) CaCO3.

Molar Mass: CaCO3 = 100.1

Answer: 8.01 x 102 ppm

CaCO3

Answer 1

Molar Mass: CaCO3 = 100.1

Total hardness ;$8.01 ×10^{2} ppm$ CaCO3