Loss of Energy clue to Chemical Union Sj"n. 



37 



lated mean amounts and the actual and percentage losses of 

 that force due to the decomposition of the carbonates by the 

 acid. 



Section B. — Formation of Salts from Acids and 

 Carbonates. 



Table B 



L — Pot 



itive metal 



j Aluminium. 



Strong Solutions. 



Ingredients 



E.M.F. 



Compounds 

 formed. 



E.M.F. 



Calculated 

 E.M.F. 



Change of Per 

 E.M.F. cent. 



Cs 2 C0 3 * 

 Bb.,OO s . 

 K 2 C0 3 . 



Na 2 C0 3 . 



1-00388 

 1-0096 

 10239 

 1-0239 









HC1. 



1-12986 



OsCl. 

 EbCl. 

 KOI. 

 NaOl. 



•9238 

 1-0096 

 1-0096 



•9953 



1-03028 

 1-03850 

 107070 

 1-0670 



Loss -10648 = 10-33 

 „ -0289 2-78 

 „ -0611 5-71 

 „ -0717 6-72 



HBr. 



1-0954 



EbBr. 



KBr. 

 NaBr. 



1-9810 

 1-0625 

 •95526 



1-0450 



• 1-0382 



1-0664 



Loss -064 = 6-12 

 „ -0343 3-22 

 „ -11114 10-42 



HI. 



•9667 



Bbl. 



KI. 



Nal. 



•8809 

 •9095 

 •89806 



•9820 

 •9856 



•9822 



Loss -1011 = 10-29 

 „ -0791 802 

 „ -0841 8-56 



H,SO v 



1-08396 



Cs.,S0 4 . 

 Eb 2 S0 4 . 



K 2 S0 4 . 



Na 2 S0 4 . 



■92094 

 •9295 

 •9238 

 •9181 



10244 

 1-0318 

 1-0488 

 10523 



Loss -10346 = 10-09 

 „ -1023 9-91 

 „ -1250 11-90 

 „ -1342 12-75 



HN0 3 . 



1-0382 



CsN0 3 . 

 EbN0 3 . 

 KNO3. 

 NaN0 3 . 



•91236 

 •91236 

 •9095 

 •9095 



1-0144 

 1-0198 

 1-0307 

 1-0316 



Loss -10204 = 10 05 

 „ -10744 1053 

 ,; -12120 11-75 

 „ -1221 11-85 



HCIO3. 



1-0382 



KCIO3. 

 NaC10 3 . 



•88948 

 •88948 



1-0317 

 1-0302 



Loss -14222 = 13-78 

 „ -10302 13-66 



Formic acid. 



•7379 



OsFormiate. 

 Bb „ 

 K 



Na ,, 



•735104 

 •74934 

 •7522 

 •75506 



•9476 

 •9319 

 •9094 

 •8910 



Loss -21256 = 22-43 

 „ -18256 1957 

 „ -15720 1728 

 „ -13594 15-25 



* A specimen of caesium carbonate, containing silica, gave an electromotive 

 force of only -9924 volt. 



