向含 l mol HCl和l mol MgSO4的混合溶液中加入1 mol•L-1 Ba(OH)2溶液,产

向含 l mol HCll mol MgSO4的混合溶液中加入1 molL-1 Ba(OH)2溶液产生沉淀的  物质的量(n)与加入Ba(OH)2溶液体积V间的关系图正确的是

 


答案

A

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