what volume of hydrogen peroxide needs to added to treat the system at 100ppm. available hydrogen peroxide is 35%
To calculate the volume of hydrogen peroxide needed to treat a system at a specific concentration, you need to know the initial volume of the system and the desired concentration, as well as the concentration of the available hydrogen peroxide solution. In this case, the available hydrogen peroxide is 35%.
To calculate the volume of hydrogen peroxide needed, you can use the following formula:
Volume of hydrogen peroxide (in mL) = (Volume of system (in mL) x Desired concentration (in ppm)) / (Available concentration (as a decimal))
Let's work through an example:
Suppose the volume of the system is 500 mL, and you want to treat it at a concentration of 100 ppm using the 35% hydrogen peroxide solution.
Volume of hydrogen peroxide = (500 mL x 100 ppm) / 0.35
First, convert the available concentration to a decimal by dividing it by 100:
0.35 = 35% / 100 = 0.35
Now substitute the values into the formula:
Volume of hydrogen peroxide = (500 mL x 100 ppm) / 0.35
Volume of hydrogen peroxide = 50000 ppm / 0.35
Volume of hydrogen peroxide = 142857.14 mL
Therefore, you would need approximately 142857.14 mL (or 142.86 L) of the 35% hydrogen peroxide solution to treat the system at a concentration of 100 ppm.