_______________________________________________________

____________________
|              |              |              |
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
_______________|______________|______________|______________

|______________

        These data to be obtained in duplicate for each burette.

!Page B!

Date

DETERMINATION OF COMPARATIVE STRENGTH HCl vs.  NaOH

_______________________________________________________

____________________
|                        |
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      |
_________________________|________________________|_________

_______________

Signed

!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 |