1、 Na2CO3 + BaCl2 = 2NaCl + BaCO3
106 2*58.5 197
x y 39.4
x = 106*39.4/197 = 21.2
y = 39.4*117/197 = 23.4
2、滤液中NaCl的质量 = y + (23.4 - 21.2) = 25.6
滤液质量 = 23.4 + 350 + 166 - 39.4 = 500
NaCl的质量分数 = 25.6/500 = 5.12%
1、 Na2CO3 + BaCl2 = 2NaCl + BaCO3
106 2*58.5 197
x y 39.4
x = 106*39.4/197 = 21.2
y = 39.4*117/197 = 23.4
2、滤液中NaCl的质量 = y + (23.4 - 21.2) = 25.6
滤液质量 = 23.4 + 350 + 166 - 39.4 = 500
NaCl的质量分数 = 25.6/500 = 5.12%