116 ON THE CALCULATION 
OF THE CONDUCTIVITY 
RESULTS OF THE CALCULATIONS. 
OF 
The following table gives the results of the calculations, the 
2nd and 3rd columns containing the numbers of gramme-molecules 
per litre in the simple solutions at 15°C, the 4th column Bender’s 
observed values of the conductivities of the mixtures, the 5th 
and 6th, corrections a and 6 referred to above, the 7th, Bender’s 
reduced values, the 8th, the calculated values, and the 9th, the 
excess of the calculated values over those observed, expressed 
as per-centages of the latter :— 
Constituent solu- 
tions ;—grm.- Conductivity of Mixture. 3 
molecules per litre. R 
o 
; 5 
eS Corrections, rY 
Beal NaCl | RCCL hea ar reduced: | ate 
A a b. fa) 
1 0.5 0.1875 291 0 291 289.5 |-0.52 
2 ” 0.375 377 0 - 7 370 373.1 |+0 84 
3 " 0.5 436 0 -— 6 430 426.1 |-0.90 
4 ” 0.75 545 0 -— 5 540 5387.6 | -—0.44 
5 " IS 866 ) -— 3 863 858.3 |-0.54 
6 1.0 | 0.1875 442 +23 - 6 459 461.4 |+0.52 
7 " 0.375 546 0 -— 5 541 540.6 |-0.07 
8 ” 0.75 707 0 - 4 703 7O1l.1 |-—0.27 
9 " 1.0 $14 - 3 - 3 808 809.2 |+0.15 
10 ” 1.5 1014 + 6 -— 5 1015 =| 1015.2 |+0.02 
1] 1 2.0 1224 - 6 -— 9 1209 | 1200.6 |-—0.69 
12 2.0 0.1875 776 0 - 3 T73 773.9 |+0.12 
13 " 1.6 1085 0) -— 6 1079 | 1086.3 |+0.68 
14 7 2.0 1458 0 -13 1445 1458 +0.90 
15 " 3.0 1832 -— 9 0 1823 | 1808.6 |-0.79 
16 3.0 1.0 1382 0 -11 1821 1324 +0.23 
17 " 2.0 1674 0 -—10 1664 1660 —0.24 
18 ” 3.0 2003 0 + 4 2007 | 1988.7 |-0.91 
19 4.0 0.375 1367 —10 —12 1345 1350.4 |+0.40 
20 ” 2.0 1857 @) +1 1858 | 1849.3 |-0.47 
21 ” a5) 2300 0 +3 2303 2239.2 |-2.77 
22 vn | 4.0 24235 eeaG = 2 | 248223 ~ 3.56] 
It will be seen that in the case of the more dilute solutions 
Nos. 1-17 and 19, the differences, which are in all cases less than 
