Discussion
50 mL of a water sample required 12 mL of EDTA, 1 mL of which is equivalent to 1 mg of CaCO\( _3 \). The total hardness is
Answer: C
Twelve millilitres of EDTA correspond to twelve milligrams of calcium carbonate equivalent in the 50 millilitre aliquot, which is 240 milligrams in a litre. Scaling the titration volume up to a litre is the step most often got wrong in this calculation.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development