将3.52 g CO2和SO2混合气体通入一定量的NaOH溶液中,气体全部与NaOH反应生成盐,将反应后的溶液减压低温蒸干后得到不含结晶水的固体,固体的质量可能为 A．8.48 g B．7.48 g C．5.72 g D．5.22g

将3.52 g CO2和SO2混合气体通入一定量的NaOH溶液中,气体全部与NaOH反应生成盐,将反应后的溶液减压低温蒸干后得到不含结晶水的固体,固体的质量可能为 A．8.48 g B．7.48 g C．5.72 g D．5.22g
将3.52 g CO2和SO2混合气体通入一定量的NaOH溶液中,气体全部与NaOH反应生成盐,将反应后的溶液减压低温蒸干后得到不含结晶水的固体,固体的质量可能为 A．8.48 g B．7.48 g C．5.72 g D．5.22g

将3.52 g CO2和SO2混合气体通入一定量的NaOH溶液中,气体全部与NaOH反应生成盐,将反应后的溶液减压低温蒸干后得到不含结晶水的固体,固体的质量可能为 A．8.48 g B．7.48 g C．5.72 g D．5.22g
考虑两种极限情况,假设3.52 g全部为CO2和SO2
（1）全部为CO2,CO2→Na2CO3
固体质量为3.52/44*106=8.48g
（2）全部为SO2,SO2→Na2SO3
固体质量为3.52/64*126=6.93g
所以最少为6.93g,选择AB.
看似不能选A,其实由于NaOH把全部气体吸收,所以氢氧化钠肯定足量,原题也没有说刚好完全反应,所以最后可能有NaOH剩余,所以只要大于6.93g,哪怕10g、100g都可以选择.

B．7.48 g

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