如何计算稀释溶液的浓度??

来源：百度知道 编辑：UC知道 时间：2024/06/14 11:36:49
某溶液的浓度为1000μg/ml
(1)取5ml的溶液加水稀释到25ml
(2)再由(1)取20ml稀释到25ml
(3)再由(2 )取20ml稀释到25ml
(4)再由(3 )取12.5ml稀释到25ml

(5) 再由(4)取2ml稀释到10ml
(6) 由(5)取5ml的溶液加水稀释到25ml
(7) 由(6)取20ml稀释到25ml
(8) 由(7 )取20ml稀释到25ml
(9) 由(8 )取12.5ml稀释到25ml

我想要求它每一次稀释过后的浓度
请问要怎麼计算
可以教我吗???
不太懂???
可以代进去，试算给我看吗?

计算稀释溶液的浓度的公式：

V1×M1 = V2×M2

V =V2 -V1

V1 = 稀释前体积n 

V2 = 稀释后体积

M1 = 前稀释浓度

M2 =稀释后浓度

V = 合计溶剂稀释

具体的溶液的变化过程如下： 

(1)取5ml的溶液加水稀释到25ml  

1000μg/ml * 5ml / 25ml = 200μg/ml  

(2)再由(1)取20ml稀释到25ml  

200μg/ml * 20ml / 25ml = 160μg/ml  

(3)再由(2 )取20ml稀释到25ml  

160μg/ml * 20ml / 25ml = 128μg/ml  

(4)再由(3 )取12.5ml稀释到25ml  

128μg/ml * 12.5ml / 25ml = 64μg/ml  

(5) 再由(4)取2ml稀释到10ml  

64μg/ml * 2ml / 10ml = 12.8μg/ml  

(6) 由(5)取5ml的溶液加水稀释到25ml  

12.8μg/ml * 5ml / 25ml = 2.56μg/ml  

(7) 由(6)取20ml稀释到25ml  

2.56μg/ml * 20ml / 25ml = 2.048μg/ml  

(8) 由(7 )取20ml稀释到25ml  

2.048μg/ml * 20ml / 25ml = 1.6384μg/ml  

(9) 由(8 )取12.5ml稀释到25ml  

1.6384μg/ml * 12.5ml / 25ml