题目内容
光谱研究表明,易溶于水的S02所形成的溶液中存在着下列平衡:
据此,下列判断中正确的是
A.该溶液中存在着SO2分子
B.该溶液中H+浓度是SO2- 3浓度的2倍
C.向该溶液中加入足量的酸都能放出SO2气体
D.向该溶液中加入过量NaOH可得到Na2SO3 、NaHSO3和NaOH的混合溶液
【答案】
【答案】A
【解析】SO2与水反应是可逆反应,故溶液中存在SO2分子
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光谱研究表明,易溶于水的SO2所形成的溶液中存在着下列平衡:
据此,下列判断中正确的是
A.该溶液中存在着SO2分子 |
B.该溶液中H+浓度是SO32- 浓度的2倍 |
C.向该溶液中加入足量的酸都能放出SO2气体 |
D.向该溶液中加入过量NaOH可得到Na2SO3 、NaHSO3和NaOH的混合溶液 |
下表列出了3种燃煤烟气脱硫方法的原理。
方法I | 用氨水将![]() ![]() ![]() |
方法II | 用生物质热结气(主要成分:![]() ![]() ![]() ![]() |
方法III | 用![]() ![]() ![]() |
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据此,下列判断中正确的是______________。
A. 该溶液中存在着
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B. 该溶液中
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C. 向该溶液中加入任何足量的强酸都能放出
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D. 向该溶液中加入过
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(2)方法I中用氨水
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A. 增大氨水浓度 B. 升高反应温度
C. 使燃煤烟气与氨水充分接触 D. 通入空气使
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采用方法I脱硫,并不需要先除去燃煤烟气中大量的
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(3)方法II主要发生了下列反应:
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(4)方法III中用惰性电极电解
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