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____________________ | | | | Burette | difference | observed | difference | calculated readings | | weights | | correction _______________|______________|______________|______________
|______________ 0.02 | | 16.27 | | 10.12 | 10.10 | 26.35 | 10.08 | -.02 20.09 | 9.97 | 36.26 | 9.91 | -.06 30.16 | 10.07 | 46.34 | 10.08 | +.01 40.19 | 10.03 | 56.31 | 9.97 | -.06 50.00 | 9.81 | 66.17 | 9.86 | +.05 _______________|______________|______________|______________
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These data to be obtained in duplicate for each burette.
!Page B!
Date
DETERMINATION OF COMPARATIVE STRENGTH HCl vs. NaOH
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____________________ | | Determination | I | II _________________________|________________________|_________
_______________ | | | Corrected | Corrected Final Reading HCl | 48.17 48.08 | 43.20 43.14 Initial Reading HCl | 0.12 .12 | .17 .17 | ----- ----- | ----- ----- | 47.96 | 42.97 | | | Corrected | Corrected Final Reading HCl | 46.36 46.29 | 40.51 40.37 Initial Reading HCl | 1.75 1.75 | .50 .50 | ----- ----- | ----- ----- | 44.54 | 39.87 | | log cc. NaOH | 1.6468 | 1.6008 colog cc. HCl | 8.3192 | 8.3668 | ------ | ------ | 9.9680 - 10 | 9.9676 - 10 1 cc. HCl | .9290 cc. NaOH | .9282 cc. NaOH Mean | .9286 | _________________________|________________________|_________
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Signed
!Page C! Date
Standardization of hydrochloric acid
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Weight sample and tube| 9.1793 |
8.1731
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8.1731 | 6.9187
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Weight sample | 1.0062
| 1.2544
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Final Reading HCl | 39.97 39.83 |
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