How Many mg/l Are in a 3% Sodium Hypochlorite Solution?

  • Thread starter Thread starter wilsonctj
  • Start date Start date
  • Tags Tags
    Chemistry
AI Thread Summary
To determine the concentration of sodium hypochlorite in a 3% solution, the formula weight of sodium hypochlorite (NaClO) must be calculated. Additionally, the density or specific gravity of the solution is required, which can typically be approximated to that of water for a 3% solution. It's important to note that sodium hypochlorite can decompose into sodium chloride and sodium hydroxide, and the solution must remain alkaline to prevent rapid decomposition into chlorine. Understanding these factors is crucial for accurate calculations.
wilsonctj
Messages
1
Reaction score
0
Hi

I need to work out how many mg/l of Sodium Hypochlorite there are in a 3% Solution

Any help (inc workings) would be greatly appreciated!

Regards

Chris
 
Chemistry news on Phys.org
This goes in the Homework Problems section.
 
Is this for a commercially manufactured solution? Sodium hypochlorite decomposes and may yield sodium chloride as it decomposes, or maybe there is sodium chloride and also sodium hydroxide as a result of the manufacturing conditions. Note, the solution needs to be alkaline otherwise will decompose very quickly into chlorine. You can calculate for yourself the formula weight of NaClO and you may need the density or specific gravity of the solution, which you should measure yourself.

Basicly what I only meant to say was, you calculate the formula weight of the compound, and you also need to have a measurement of the specific gravity or density; then you can calculate what you asked.
 
Last edited:
3% solution is diluted enough so that you may - as a first approximation - safely assume its density is that of water.

--
 
I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
Back
Top