An Introductory Course of Quantitative Chemical Analysis, Henry P. Talbot [chrome ebook reader txt] 📗

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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!Page C!
Date

STANDARDIZATION OF HYDROCHLORIC ACID
=====================================================================
                      | |
Weight sample and tube| 9.1793 | 8.1731
                      | 8.1731 | 6.9187
                      | ——— | ———
   Weight sample | 1.0062 | 1.2544
                      | |
Final Reading HCl | 39.97 39.83 | 49.90 49.77
Initial Reading HCl | .00 .00 | .04 .04
                      | ——- ——- | ——- ——-
                      | 39.83 | 49.73
                      | |
Final Reading NaOH | .26 .26 | .67 .67
Initial Reading NaOH | .12 .12 | .36 .36
                      | —- —- | —- —-
                      | .14 | .31
                      | |
                      | .14 | .31
Corrected cc. HCl | 39.83 - ——- = 39.68 | 49.73 - ——- = 49.40
                      | .9286 | .9286
                      | |
log sample | 0.0025 | 0.0983
colog cc | 8.4014 - 10 | 8.3063 - 10
colog milli equivalent| 1.2757 | 1.2757
                      | ——— | ———
                      | 9.6796 - 10 | 9.6803 - 10
                      | |
Normal value HCl | .4782 | .4789
    Mean | .4786 |
                      | |
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!Page D!
Date

DETERMINATION OF CHLORINE IN CHLORIDE, SAMPLE No.
=====================================================================
                      | |
Weight sample and tube| 16.1721 | 15.9976
                      | 15.9976 | 15.7117
                      | ———- | ———-
    Weight sample | .1745 | .2859
                      | |
Weight crucible | |
      + precipitate | 14.4496 | 15.6915
    Constant weights | 14.4487 | 15.6915
                      | 14.4485 |
                      | |
    Weight crucible | 14.2216 | 15.3196
    Constant weight | 14.2216 | 15.3194
                      | |
    Weight AgCl | .2269 | .3721
                      | |
    log Cl | 1.5496 | 1.5496
    log weight AgCl | 9.3558 - 10 | 9.5706 - 10
    log 100 | 2.0000 | 2.0000
    colog AgCl | 7.8438 - 10 | 7.7438 - 10
    colog sample | 0.7583 | 0.5438
                      | ———- | ———-
                      | 1.5075 | 1.5078
                      | |
 Cl in sample No. | 32.18% | 32.20%
                      | |
=====================================================================

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STRENGTH OF REAGENTS

The concentrations given in this table are those suggested for use in the procedures described in the foregoing pages. It is obvious, however, that an exact adherence to these quantities is not essential.

                                                        Approx. Approx.
                                                Grams relation relation
                                                 per