应该是125m/18v .
因为硫酸根的质量为m (mg),换算为摩尔数浓度为:C = 1000m / ( 96 × v ) (mol/L)
又因为Al2(SO4)3 == 2Al3+ + 3(SO4)2-;
所以,折算为 [Al3+] 摩尔浓度为:
[Al3+] = C / 3 ×2
= 2000m / ( 3×96 × v )
= 125m / 18v (mol/L)
应该是125m/18v .
因为硫酸根的质量为m (mg),换算为摩尔数浓度为:C = 1000m / ( 96 × v ) (mol/L)
又因为Al2(SO4)3 == 2Al3+ + 3(SO4)2-;
所以,折算为 [Al3+] 摩尔浓度为:
[Al3+] = C / 3 ×2
= 2000m / ( 3×96 × v )
= 125m / 18v (mol/L)