An EDTA was prepared by dissolving approximately 4g of the disodium salt in appr

Question

An EDTA was prepared by dissolving approximately 4g of the disodium salt in approximately 1 L of water. An average of 42.35 mL of this solution was required to titrate 50.00 mL aliquots of a standard that contained 0.7682g MgCO3 per liter. Titration of a 25.00 mL sample of mineral water at pH 10 required 18.81 mL of the EDTA solution. A 50.00 mL aliquot of the mineral water was rendered strongly alkaline to precipitste the magnesium as Mg(OH)2. Titration with a calcium specific indicator required 31.54 mL of the EDTA solution. Calculate:

A) Molarity of the EDTA solution

B) PPM of CaCO3 in the mineral water

C) PPM of MgCO3 in the mineral water

Explanation / Answer

An EDTA was prepared by dissolving approximately 4g of the disodium salt in appr

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.