by Displacement in their own Mother-liquor. 29 



Table I. — Experiment al Details in the Case of Caisium Chloride. 



Formula and molecular weight of salt 

 Temperature 



MR 

 T 



Mother-Liquor. 

 Determination of Specific Gravity. 



Weight of specific gravity bottle 



Weight of specific gravity bottle filled with dis- 

 tilled water 



Weight of water which fills it . w 2 — io } 



Weight of sp. gr. bottle + mother-liquor 



Weight of mother-liquor w i —w J 



w 

 Specific gravity of mother-liquor — 5 



Analysis. 

 Weight of mother-liquor taken 



Cb. cents. -j-L AgN0 3 solution used 



. . .. .«,xME' 



W eisrht oi salt equivalent to silver used — 



& x 10000 



Weight of water in W gms - mother-liquor vo 6 —w s 



Concentration of mother-liquor expressed in gm. 



w 

 molecules salt per thousand Q-ms. water 0-1 - 



Salt in Crystal. 

 Determination of Specific Gravity. 



A. Weight of first portion of salt 



Weight of sp. gr. bot. + salt + mother-liquor 



Weight of mother-liquor. w u — { w i+ w ui ) 



Weight of water displaced by mother- 



liquor 



Weight of water displaced by salt ..iff 

 Specific gravity of salt 



s 



B. Weight of second portion of salt ...... 



Sum of weights of the two pbrtions_to ]0 + w) 1B 

 Weight of sp. gr. bottle + salt+ mother - 



liq nor 



Weight of mother-liquor . to n — (w i +tv jl .) 



Weight of water displaced by the mother- 



liquor — i? 



s 



Weight of water displaced by the salt w 3 . io l0 



w 

 Specific gravitv of salt — ^ 



. w , 



C Weight of water displaced by salt..?o 20 — iv u 



Specific gravity of salt ... 



Accepted specific gravity of salf 



W 10 



W ii 



D 2 



OS 



D 



CsCI = 168-5 

 23-1° C. 



38-8900' ms - 



89-2399 



50-3499 



135-0620 



96-1720 



1-9104 



l-0334s ras - 

 41*21 cc - 



0-6944s ms - 



0-3390 



12-1563 



22 

 146 



85 



44 

 5 

 3 



26 



48 



160 



72 



38 

 12 

 3 

 6 

 3 

 3 



1229 gms- 



5514 



5385 



7828 



5671 



9739 



6220^ ms - 

 7449 



4249 

 7900 



1085 

 2414 



9820 

 6743§ ms - 

 9890 

 982 



