Jessica F.

asked • 10/09/19

How to find Mg of a substance using molarity

Calcium levels in blood can be determined by adding oxalate ion to precipitate calcium oxalate, CaC2O4, followed by dissolving the precipitate in aqueous acid and titrating the resulting oxalic acid (H2C2O4) with KMnO4:5H2C2O4(aq)+2MnO−4(aq)+6H+(aq)→10CO2(g)+2Mn2+(aq)+8H2O(l).


How many milligrams of Ca2+ are present in 11.0 mL of blood if 23.78 mL of 9.02×10−4 M KMnO4 solution is needed for the titration?

1 Expert Answer

By:

Suzanne K. answered • 10/10/19

Tutor
New to Wyzant

Experienced High school and community college chemistry teacher

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.