The pH of hydrogen peroxide at concentrations of 10% to 12% is around 3.0 to 4.0. It is considered acidic.
1 part of hydrogen peroxide out of 30% hydrogenperoxide bottle add 10 parts of distilled water
You can buy hydrogen peroxide from most drugstores, pharmacies, or online retailers. Look for it in the first aid section or ask a pharmacist for help locating it. Make sure to choose the correct concentration for your intended use.
Each catalase molecule can break down one molecule of hydrogen peroxide. Therefore, at least 10 catalase molecules would be needed to break down 10 molecules of hydrogen peroxide.
The label should indicate the concentration of hydrogen peroxide, not volts. If it is labeled 10 volts, it is likely a labeling error as hydrogen peroxide concentrations are typically indicated as a percentage (e.g. 3% hydrogen peroxide).
Since the dissociation constant for hydrogen peroxide is 2.4 x 10^-12 (very very small) if only a 3% concentration were to be mixed with water the pH would be negligible. However the main reason Hydrogen peroxide stings when you spill or pour it on a cut to disinfect it is because of its fairly high reactivity.
Interesting question. Balanced equation. H2 + O2 >> H2O2 ( let's find moles and limiting reactant ) 10 O2 molecules (1 mole/6.022 X 10 ^23) = 1.66 X 10^-23 moles O2 same for H2, so one to one and reaction is driven by above moles, but use O2 for convenience. actually, as all is one to one, you get back 10 molecules H2O2 anyway 1.66 X 10^-23 X 6.022 X 10^23 = 9.99, or 10 molecules of H2O2
Cells produce hydrogen peroxide as a byproduct of many metabolic processes, but it is toxic to cells if it accumulates. Cells have enzymes like catalase to break down hydrogen peroxide into water and oxygen, preventing cellular damage. If cells are unable to break down hydrogen peroxide, it can lead to oxidative stress and damage to cellular components.
There is no mixture using hydrogen peroxide to clean dark urine stains on a hardwood floor. However, you can dip a rag into hydrogen peroxide and allow it to sit on the stain for about 10 minutes.
The normality strength of 10 volume hydrogen peroxide is approximately 0.3 N. This means that one liter of the solution contains 0.3 moles of hydrogen peroxide. It is important to handle this chemical with caution due to its oxidizing properties.
To make a 5 volume developer, you would mix equal parts of 10 volume developer (3% hydrogen peroxide) and distilled water. This will dilute the concentration of hydrogen peroxide to achieve a 5 volume strength (1.5% hydrogen peroxide).
Hydrogen peroxide degrades at a rate of about 10% per year when stored in a cool, dark place. Therefore, 3% hydrogen peroxide would degrade by approximately 0.3% per year under these conditions. It's important to store it properly to maintain its effectiveness.