Data Table 1: Complexometric Titration of Hard Water6ml of water used (5ml of hard water and 1ml of buffer) Hard Water Trial 1Hard Water Trial 2Hard Water Trial 3Initial Syringe Reading (mL)1ml1ml1mlFinal Syringe Reading (mL)0.55ml.50ml.33mlVolume of EDTA Consumed (mL)0.45ml.50ml.77mlWater Hardnessppm CaCO3 (mg/L) Average ppm CaCO3 (mg/L): photo shows equation that needs to be used to solve mL EDTA1 L0.01 mol EDTA1 mol CaCO,mol CaCO,%3D11,000 mL1 L1 mol EDTA1,000 mg100.1 g CaCO,1 mol CaCO,1,000 mLmol CaCO,mL Water Samplemg/L CaCO,%3D1 g1 Lmg/L CaCO,=_ppm CaCO,continued on next

We would use the given formula to calculate the water hardness ( ppm CaCO3 ) .

Answered: 6ml of water used (5ml of hard water…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Data Table 1: Complexometric Titration of Hard Water

6ml of water used (5ml of hard water and 1ml of buffer)

	Hard Water Trial 1	Hard Water Trial 2	Hard Water Trial 3
Initial Syringe Reading (mL)	1ml	1ml	1ml
Final Syringe Reading (mL)	0.55ml	.50ml	.33ml
Volume of EDTA Consumed (mL)	0.45ml	.50ml	.77ml
Water Hardness ppm CaCO₃(mg/L)

Average ppm CaCO₃ (mg/L):

photo shows equation that needs to be used to solve

mL EDTA
1 L
0.01 mol EDTA
1 mol CaCO,
mol CaCO,
%3D
1
1,000 mL
1 L
1 mol EDTA
1,000 mg
100.1 g CaCO,
1 mol CaCO,
1,000 mL
mol CaCO,
mL Water Sample
mg/L CaCO,
%3D
1 g
1 L
mg/L CaCO,=_ppm CaCO,
continued on next

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