Average Molarity of EDTA solution O.O Trial 1 Volume (mL) of unknown water sample Volume (L) of unknown water sample Initial buret reading Final buret reading Volume (mL) of EDTA used in the titration Volume (mL) used for the blank from Part A Corrected Volume (mL) of EDTA used in the titration Corrected Volume (L) of EDTA used in the titration Concentration (M) of EDTA used in the titration. Corrected Moles of EDTA used in the titration Moles of CaCO3 in the Sample Concentraton (M) of CaCO3 in the Sample 25.00 O.Oasoo OML 8ml 8ml 2.43 S. 507 0.005567 0.01 0-000057 S.STE-S 24 M Trial 2 m 25.00 2500 8 Isml 7ml 2.43 4.57 0.00457 0.01 0.0000457 4-57E-5 0.000057 0.0000457 1.2102 0.01 0.01006 Average Molarity of CaCO3 ppm (mg/L) CaCO3 223 0.01 x 0-00457=4.57E-S Trial 3 25.00 0.02500 15ml 2a.Sml 7.5 2.43 5.07 0.00507 0.01 0.0000 507 S.07E-S 0.0000 507 0.01 8
Average Molarity of EDTA solution O.O Trial 1 Volume (mL) of unknown water sample Volume (L) of unknown water sample Initial buret reading Final buret reading Volume (mL) of EDTA used in the titration Volume (mL) used for the blank from Part A Corrected Volume (mL) of EDTA used in the titration Corrected Volume (L) of EDTA used in the titration Concentration (M) of EDTA used in the titration. Corrected Moles of EDTA used in the titration Moles of CaCO3 in the Sample Concentraton (M) of CaCO3 in the Sample 25.00 O.Oasoo OML 8ml 8ml 2.43 S. 507 0.005567 0.01 0-000057 S.STE-S 24 M Trial 2 m 25.00 2500 8 Isml 7ml 2.43 4.57 0.00457 0.01 0.0000457 4-57E-5 0.000057 0.0000457 1.2102 0.01 0.01006 Average Molarity of CaCO3 ppm (mg/L) CaCO3 223 0.01 x 0-00457=4.57E-S Trial 3 25.00 0.02500 15ml 2a.Sml 7.5 2.43 5.07 0.00507 0.01 0.0000 507 S.07E-S 0.0000 507 0.01 8
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:B. Hardness of Unknown Water Sample
***Unknown Letter_B
Average Molarity of EDTA solution 0.01
Trial 1
Volume (mL) of
unknown water
sample
Volume (L) of
unknown water
sample
Initial buret reading
Final buret reading
Volume (mL) of
EDTA used in the
titration
Volume (mL) used
for the blank from
Part A
Corrected Volume
(mL) of EDTA used
in the titration
Corrected Volume
(L) of EDTA used in
the titration
Concentration (M) of
EDTA used in the
titration.
Corrected Moles of
EDTA used in the
titration
25.00
O-Oasoo
OmL
8m1
8m1
2.43
S. 507
0.005567
0.01
0-000057
S.57E-S
Moles of CaCO3 in
the Sample
Concentraton (M) of
CaCO3 in the Sample
10000057
2102
M
Trial 2
25.00
2500
8
Isml
7ml
2.43
4.57
0.00457
0.01
0.000011
4-STE
0.0000457
0.01
0.01006
Average Molarity of
CaCO3
ppm (mg/L) CaCO3
223
0-01 ×0-00457=4.57E-
-S
Trial 3
25.00
0.02500
15 ml
22.Sml
7.5
2.43
S.07
0.00507
0.01
0.0000 507
S.07E-S
0.0000 507
0.01
8
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