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1) Use the molarity of the EDTA solution and the average volume of EDTA added to calculate the average number of moles of EDTA required for the titration.

Molarity EDTA= .01 & Volume EDTA= .01755 L

Find moles?

2) EDTA reacts with the hard water ions in a 1:1 ratio. Calculate the total number of moles of the metal ions present in the 50 mL of water tested?

3) An experiment to find water hardness required 18.2 mL of 0.0050 M EDTA solution to titrate 40.0 mL of tap water using an Eriochrome Black T indicator. Find the parts per million of calcium.

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  • Category:- Chemistry
  • Reference No.:- M9471345

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