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6ml of water used (1ml of buffer and 5ml of soft water)    Hard Water Trial 1 Hard Water Trial 2 Hard Water Trial 3 Initial Syringe Reading (mL) 1ml 1ml 1ml Final Syringe Reading (mL) 77ml 79ml 75ml Volume of EDTA Consumed (mL) .23ml .21ml .25ml Water Hardness ppm CaCO3 (mg/L)         Average ppm CaCO3 (mg/L):

6ml of water used (1ml of buffer and 5ml of soft water)    Hard Water Trial 1 Hard Water Trial 2 Hard Water Trial 3 Initial Syringe Reading (mL) 1ml 1ml 1ml Final Syringe Reading (mL) 77ml 79ml 75ml Volume of EDTA Consumed (mL) .23ml .21ml .25ml Water Hardness ppm CaCO3 (mg/L)         Average ppm CaCO3 (mg/L):

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
Problem 3.27PAE
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Data Table 3: Complexometric Titration of Soft Water

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

 

Hard Water Trial 1

Hard Water Trial 2

Hard Water Trial 3

Initial Syringe Reading (mL)

1ml

1ml

1ml

Final Syringe Reading (mL)

77ml

79ml

75ml

Volume of EDTA Consumed (mL)

.23ml

.21ml

.25ml

Water Hardness

ppm CaCO3 (mg/L)

 

 

 

 

Average ppm CaCO3 (mg/L):

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
Transcribed Image Text: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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