Fig. 4 shows these results plotted. The residual conductivity 
of the water has not been deducted from the conductivity readings 
Extremely Dilute Acid and Alkal« Solutions. 
TasLe I. Sulphuric Acid. 
Concentration of 
Resistance of Solution 
Conductivity of 
Solution 
Solution in Cell k 
(gm.-equiv. per litre) (ohms) (= R) ( = a) 
— — 1,545,000 3°6x 107 
DA) xe KOS? 1,400,000 3:9 
10-7 1,010,000 5-5 
19:2 735,000 7:5 
28-4 600,000 9:2 
38°4 485,000 11:3 
49-4 377,500 14:6 
61-5 317,000 17-4 
88:3 210,500 26-1 
149-5 112,500 48-9 
218 75,860 (2D 
298 54,100 101-7 
394 40,660 135:3 
in this case. 
Conductivity (10-6 reciprocal ohm) 
Concentration of H,SQ, (10-° gm.-equiy. per litre) 
Fig. 4, 
