Na2CO3~~2NaCl~~CO2,NaHCO3~~NaCl~~CO2
106 44 8444
xm1y m2
106/x = 44/m1
84/y = 44/m2
又因为x+y = 9.5g
m1 + m2 = 4.4g
解得x=5.3g,y=4.2g
所以反应后得到的NaCl质量 = 5.3/106 * 2*58.5 + 4.2/84 * 58.5 = 8.775g
加热蒸发5克水后溶液质量 = 9.5+33-4.4-5=33.1g
所以T℃该溶液中溶质的溶解度S = 8.775/33.1 * 100 = 26.5g