How do you prepare 1M or 1N hcl ?

± How to make 1 Molar or 1 normal hcl

In case of HCL molarity & Normality is same Because-

Because HCL = H+ + CL- 

HCL contain only one H+ ion means Basicity Of HCL is = n = 1 

Normality = molarity  × n

 n = [Basicity of HCL ] 

N= M×1

  So  N = M (That is why in case of HCL Normality & molarity is same )

Now let's see how to make 1 N or 1M  HCL from 37% concentrated HCL

This calculation varies with concentration of HCL. Because density varies with concentration of HCL . Now we are having density 1.18 for 37% concentrated HCL.  If you are going to use less concentrated HCL then first find out density of it then put that value in below formula instead of 1.18.

HCL is liquid, so at first we need to convert HCL molecular weight (gm) into volume (ml)

let's use formula

density = mass / volume

volume = mass of HCL  / density

                            36.5 / 1.18

V = 30.93 ml

  

Here we are making 1M or 1N  HCL from 37% concentrated HCL. If you are going to use less concentrated HCL then use that percentage value in below formula rather than 37%.

Let's use formula 

1M HCL of (37%) =  30.39 ml [ V ]

             100%       =     X 

X =  30.39 ml  ×  100%  /  37%

X = 83.60 ml

we need to dilute 83.60 ml of 37%. concentrated HCL into 1000 ml Volumetric flask In order to make 1N or 1 M HCL.

Now you can use this information to make various solutions 

For example.   

1 M or 1N = 916.4 ml (water) + 83.60 ml (HCL) 37%

2M or  2N  =  832.8 ml (water) + 167.2 ml (HCL) 37%