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某碱式碳酸镁[Mg(OH)2×xMgCO3]固体31g恰好跟100mL、8mol×L-1的HCl反应生成MgCl2溶液,则x为A.1B.2C.3D.4
某碱式碳酸镁[Mg(OH)2×xMgCO3]固体31g恰好跟100mL、8mol×L-1的HCl反应生成MgCl2溶液,则x为A.1B.2C.3D.4
发布时间:2020-08-04 22:30:16
某碱式碳酸镁[Mg(OH)2×xMgCO3]固体31g恰好跟100mL、8mol×L-1的HCl反应生成MgCl2溶液,则x为A.1B.2C.3D.4
网友回答
C解析Mg(OH)2×xMgCO3~ 2(x+1)HCl (58+84x)g 2(x+1)mol 31g 8mol×L-1;0.1L x=3
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