(1a).tablerogh- 24.00,0.00,24.0 01-23.50,0.00,2 3.502-25.50,2.0 0,23.503-27.50, 4.00,23.50.VA=2 3.50+23.50/ 3=70.50/3 VA=23.50[1a continues]Equat ion for the reaction:2HY(aq )+Na2Co3(aq)--- --2NaY(aq)+H2O( 1)+CO2(g) (1b).C AVA/ CBVB=CA=?,CB=0.0 5 VA=23.50,VB=25C A*23.50/ 0.05*25=2/ 1CA*23.50*1=0.05 *25*2=2.5/ 23.50 CA=2.5/ 23.5CA=0.106mold m^3.(3ai) S is hydrogen sulphate(H2S),T is Iron (III) sulphidV is sulphur(IV) oxide (3aii)Itdecolou rizes the Solution (3bi)Na2CO3 is soluble in water while NaHCO3 is insoluble in waterNa2CO3 is a basic salt whichchanges red litmus paper tobluwhile NahCO3 is a acidic salt thatchanges blue litmus paper toread. (3bii) Na2CO3 cannot bedecomposed on heatingwhile NaHCO3 can be decompose onheating
Posted on: Mon, 02 Sep 2013 14:55:14 +0000
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