HELP: How to obtain a concentration of 20% NaOH ?

[Quebecker]

Hi,

Would someone kind enough to tell me how much NaOH to use in one liter of water to obtain the maximum concentration of 20% ?

This is the electrolyte to be used in my dry-cell and a CCPWM. The goal is to use the lowest amperage.;)

Thanks in advance

[BioFarmer93]

The percentage is calculated by weight, so a 20% solution would be 200 grams of NaOH and 800 grams (cc) of distilled water, wouldn't it?

[Quebecker]

The percentage is calculated by weight, so a 20% solution would be 200 grams of NaOH and 800 grams (cc) of distilled water, wouldn't it?

Thanks, you're right !!!

200 grams of NaOH and 800 ml of distilled water

[myoldyourgold]

Using a hydrometer it should be 1.2191 at 20º C.

[Quebecker]

Using a hydrometer it should be 1.2191 at 20º C.

thank you for this valuable information