# How to prepare 0.1M HCl Solution in pharma

## Procedure for How To Prepare 0.1M HCl Solution

In the market 37% of HCl is available, on the basis of that molarity calculation has been done as follows;

Dilute 370ml of HCl into 1000ml of distilled water (37%).

The density of HCl is 1.19 g/l

The molecular weight of HCl is 36.5

370 x 1.19 = 440.3 g/l

Therefore the Molarity of HCl is,

440.3 / 36.5 = 12.0630 M or 12 M.

To prepare the 0.1M HCl solution needs to calculate the required quantity of HCl.

According to the formula,

M1 V1 = M2 V2

0.1 x 1000 = 12 x V2

V2 = 0.1 x 1000/12 =8.3333 ml.

Therefore, 8.3 ml of 37% HCl in 1000 ml water is required to prepare a 0.1M HCl solution.

## How to prepare 1M HCl solution:

Diluted 83 ml of 37% HCl in a 1000 ml of volumetric flask and diluted with water up to the mark.

According to your requirement, you can prepare the solution by diluting the higher concentration to lower concentration.

## How to prepare 0.1M HCl Solution:

• Take a dried and cleaned 1000 ml volumetric flask and add 100 ml of water.
• Add 8.3 ml of concentrated Hydrochloric acid.
• Make up the volume up to the mark with water and mix the solution thoroughly.

Or, can be prepared from 1 M HCl.

• Take a 100ml of 1M HCl into 1000 ml of volumetric flask.
• Diluted up to the mark with water and mixed well.

Hope your query is resolved for the How To Prepare 0.1M HCl Solution.