scale
pH <--- HUH? hehe
false
12.5
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.
Hydrogen peroxide decomposes through a thermodynamically favourable reaction: 2H2O2 → 2H2O + O2 The rate of this reaction increases with temperature and depends on factors like its concentration, pH and the prescence of a catalyst. Thus, a bottle of hydrogen peroxide can decompose when stored under unfavourable conditions.
yes
The material most commonly called "hydrogen peroxide", especially by non-chemists, is a solution of the solute hydrogen peroxide in water as the solvent.
Peroxide is an compound that can be a part of another chemical to form a molecule. Hydrogen peroxide is two hydrogen atoms attached to a peroxide molecule, forming hydrogen peroxide. Peroxide itself (O2) only exists as molecular oxygen when it is not attached to another chemical.
Pure hydrogen peroxide has a pH of 6.2
level6
pH 4.4 :)
because the Ph is 33 when hydrogen peroxide is 12
between 2,5 and 4,5
Answering "Experiment on the effect of the PH of enzymatic reaction using hydrogen peroxide and extract of spinach leaf?"
YVA_ANG left this answer to a previous same question in Yahoo answers: The pH of hydrogen peroxide at: 35% = 2.5 50% = 1.8 70% = 0.5 Hopefully this helps http://chemicalland21.com/industrialchem...
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.
Hydrogen peroxide is a teeth whitener, google "hydrogen peroxide teeth."
Hydrogen is an element.Hydrogen peroxide is a compound.
Hydrogen peroxide decomposes through a thermodynamically favourable reaction: 2H2O2 → 2H2O + O2 The rate of this reaction increases with temperature and depends on factors like its concentration, pH and the prescence of a catalyst. Thus, a bottle of hydrogen peroxide can decompose when stored under unfavourable conditions.
hydrogen+peroxide