设盐酸中HCl的质量为:Xg
NaOH + HCl = NaCl + H2O
40 36.5
0.4 X
列比例式:40/0.4 =36.5/X 解得:X = 0.365
又因为HCl的摩尔质量是:36.5g/mol ,
则HCl的物质的量为:0.365/36.5 = 0.01mol
因为盐酸的体积为10ml
那么盐酸物质的量的浓度为:0.01mol/10ml = 0.001 mol/ml
设盐酸中HCl的质量为:Xg
NaOH + HCl = NaCl + H2O
40 36.5
0.4 X
列比例式:40/0.4 =36.5/X 解得:X = 0.365
又因为HCl的摩尔质量是:36.5g/mol ,
则HCl的物质的量为:0.365/36.5 = 0.01mol
因为盐酸的体积为10ml
那么盐酸物质的量的浓度为:0.01mol/10ml = 0.001 mol/ml