% Calcium in Milk by EDTA titration?

Can someone please show me the FULL equation for determining the % calcium in a milk sample.
10 ml of milk was the sample
EDTA was the titrant (0.025M)
8M of NaOH was also added along with paton reader indicator.
I need to know what the % calcium in the milk is?
My titre was 25ml of EDTA into the milk sample -(10ml sample)
Therefore what would the % of calcium be?
Please help, I am trying to finish this project for my science fair! Appreciated.

EDTA reacts with calcium 1:1 so moles of calcium in 10ml milk
= moles EDTA used in titration = 25 x 0.025/1000
MWt Ca= 40.08
% Ca w/v = 25 x 0.025 x 40.08 x 100 / (1000 x 10)

The answers post by the user, for information only, FunQA.com does not guarantee the right.

More Questions and Answers:
  • Uses of laboratory apparatus?
  • If i had a test tube ofpure oxygen, is there anything cooli could do with it.?
  • Why do formic and citric acid reaction with potassium permanganate and tthe acetic dont?
  • For wat reaction does the half-life get longer as the initial concentration increases?& Y? Here's choices?
  • Balance this equation. Prove that it obeys the law of conservation of mas by using fomula masses.?
  • What is the tempurture of boiling water? What is the tempurture of the water when evaporation?
  • How does fire extinguisher kills or fights fire?
  • How do you find the concentration in ppm?
  • Which has more total atoms 1 mole of Cl2 or 1 mole of NH3?