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How are the concentration errors, the RSD, and the 95% Cl calculated in table 3?

70811665_957346141264909_8808968492347817984_n.jpg

Error (+)
Table 1 Uncertainties
Value
0.0001
5.1234
0.008
Potassium Hydrogen Phthalate (KHP) g
204.221
K HP, g/moles
250.00
0.12
24.996
0.02
0.05
I. OB
Volumetric Flask, ml
50.00
Pipette, ml
Burette, ml
123
0.02509
0.000001
II. P
Unknown #
0.000048
KHP (moles)
0.10035
KHP
III.
Table 2 Element Uncertainties
Molar Mass
Element
# of
Element
KHP
Error
SO
Element
mass
error
39.0983
0.00010
39.0983
0.0001
K
H
5
1.00798
0.00014
5.0399
0.0007
C
8
12.0106
0.00100
96.0848
0.0080
4
15.9994
0.00040
63.9976
0.0016
204.221
0.008
Table 3 Calculation of Base Concentration
Trial
Volume (mL)
Initial
Final
+ 0.05
Delivered
+ 0.05
0.08
+ 0.07
N
28.62
Base
Error (+)
- W
1.23
28.54
29.40
0.0707
0.05
0.08789
16.02
28.52
28.17
0.00023
28.47
0.0707
0.08904
44.80
0.0707
0.00024
28.78
0.0707
0.08811
0.00023
0.08716
0.00023
# of observations
4
Average
Std Dev
0.0880
0.0002
5, 1234 grud
95 % CI
0.0008
RSD
0.0012
8.83

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