Sample Problem 4.9
Finding an Unknown Concentration by a Redox Titration
PROBLEM:
Calcium ion (Ca2+) is required for blood to clot and for many other cell processes. An abnormal Ca2+ concentration is indicative of disease. To measure the Ca2+ concentration, 1.00 mL of human blood was treated with Na2C2O4 solution. The resulting CaC2
(a) Calculate the amount (in moles) of Ca2+.
(b) Calculate the amount (in moles) of Ca2+ ion concentration expressed in units of mg Ca2+/100 mL blood.
mol of KMnO4
volume of KMnO4 soln
mol of CaC2O4
mol of Ca2+
multiply by M
molar ratio
ratio of elements in formula
| Previous slide | Next slide | Back to first slide | View graphic version |