253 
Fourth.—The number of grams to separate the disk from the solutions 
when 46.92 g. of each of the three materials were dissolved in 200 ce. of 
water. 
5 Sodium Copper 
al. i z Sugar. 
Trial Chloride. Sulphate. hae 
1 50.00 51.00 53.10 
2 50 .02 51.05 53.10 
3 50.01 51.07 53.50 
Mean. | 50.01 51.06 53.26 
Fifth—The number of grams to separate the disk from the solutions 
when 62.56 g. of each of the three materials were dissolved in 200 ce. of 
water. 
- Sodium Copper 
Trial. Chloride. | Sulphate. Sugar 
1 50.90 51.50 ent 
2 50.85 51.45 55.80 
3 51.05 pI 55.75 
Mean. 50.90 | 51.46 55-00 
Norr. The copper sulphate solution was a saturated solution. 
Sixth—The number of grams to separate the disk from the solutions 
when each of the three materials were saturated solutions at the normal 
temperature. 
: Sodium Copper 
a Chloride. Sulphate. eS 
it DOPODS Be iia isc\sieue aay Stee 57.00 
74 ESTE O Si sal ensue see ceeeeys ah 56.95 
3 MOOT Baleess, i Sete cretorshal exe 57.10 
Mean. 50.96 51.46 56.99 
These results for each of the three dissolved salts may be plotted 
graphically by using the number of grams concentration as abscissas and 
grams to separate the disk as ordinates. 
