How do you make 5.25 percent sodium hypochlorite?

Answer 1

Weight 5.25 g dry NaClO and add it to about 90 mL water, dissolve completely and fill up till 100 mL exactly: then you've got a 5.25 g/100 mL solution. (This is almost 5.25%).

If you want it more exactly: add the same amount to 94.75 GRAMs of water. (Now it is almost 100 mL).

Answer 2

To make a 5.25% sodium hypochlorite solution, you would mix 5.25 parts of sodium hypochlorite with 94.75 parts of water. For example, to make 1 liter of 5.25% solution, you would mix 52.5 mL of sodium hypochlorite with 947.5 mL of water. Always handle sodium hypochlorite with caution as it is a powerful oxidizing agent and can cause skin and eye irritation.