设水为1L,即1000g
那么NH3为700L,其物质的量为700L/22.4L/mol = 31.25mol,质量为31.25mol×17g/mol = 531.25g
所以此氨水的质量分数为531.25g/(1000g+531.25g)×100% = 34.7%
此氨水的质量为1531.25g,
所以体积为1531.25g/0.89g/mL = 1.72L
所以物质的量浓度为31.25mol/1.72L = 18.17mol/L
设水为1L,即1000g
那么NH3为700L,其物质的量为700L/22.4L/mol = 31.25mol,质量为31.25mol×17g/mol = 531.25g
所以此氨水的质量分数为531.25g/(1000g+531.25g)×100% = 34.7%
此氨水的质量为1531.25g,
所以体积为1531.25g/0.89g/mL = 1.72L
所以物质的量浓度为31.25mol/1.72L = 18.17mol/L