How do I change from 20 percent to 4petcent hydrochloric acid, do I use distilled water
Yes, use distilled water.
Your title says 10% but your text body says 20%, which is it?
You can use this calculator to do the math. Scroll down to the
Dilution Calculator PPM PPB Percentage
endmemo.com/bio/dilution.php
- To make 4% from 20% 1000ml HCl - you would add 1000ml of HCl to 4000ml of distilled water.
- To make 4% from 10% 1000ml HCl - you would add 1000ml of HCl to 1500ml of distilled water.
There is also a very useful app on the Google Play Store called
Lab Hacks, it has a bunch of useful features including dilution.
Here is a copy and paste of another way of calculating it:
To create a 4% solution of HCl from a higher strength, you must divide the strength of the solution you have by 4 to determine how much you need to dilute your HCl.
- Divide the strength of your solution by 4.
- If you have 35% HCl, divide that by 4% and you have 8.75 parts.
- 1 part has to be the 35% HCl and 7.75 parts is distilled water.
- So if you have 100 ml of 35% HCl (1 part), then you will need 7.75 parts x 100 ml = 775 ml of distilled water.
- Add the 100 ml of 35% HCl to 775 ml of distilled water and you will have 875 ml of 4% HCl.
