Disinfecting solution

How much distilled water is necessary to pour into 500 ml of 33% hydrogen peroxide to obtain a 3% disinfecting solution?

Correct answer:

x =  5000 ml

Step-by-step explanation:

V=500 ml r=33%=10033​=0.33 k=3%=1003​=0.03  r⋅ V=k⋅ (x+V) 0.33⋅ 500=0.03⋅ (x+500)  0.03x=150  x=0.03150​=5000  x=5000=5000 ml

Try another example


Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?
Tip: Our volume units converter will help you convert volume units.

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Themes, topics:

Grade of the word problem:

Related math problems and questions: