Question

配制50ml/mo|的hcl,要37%,密度为1.19g/m|的浓hc|多少体积?配50ml,0.1m0l/L的NaoH

Answer 1

37%,密度为1.19g/m|的浓hc|相当摩尔浓度：37%*1.19/36.5*1000=12.06Mol/L

50ml*0,1Mol/L=V*12.06Mol/L

V=0.41ml浓HCL

用NaoH为：50ml*0,1Mol/L=V*1Mol/L

V=5ml