H2O2 Therapy Experiments

admin answers:

Lancenigo di Villorba (TV), Italy

YOUR ANSWER
Hydrogen peroxide-based house-hold stuffs need
POLY-PHOSPHORIC ACID.
Why this stuff? It interacts with iron ions to avoid their chemical activities. Go to the underwritten.
GENERALITIES
I remember you that catalysts enhanced reaction’s rate.
In order to slow decomposition’s rate you use not a catalysts but other substances to avoid chemical species involved in decomposition of hydrogen peroxide.
How it proceeds the decomposition of hydrogen peroxide?
Many chemical compounds permit this reaction, among these there are manganese dioxide, iron salts.
The latters are most diffused pollutants of aqueous solutions as hydrogen peroxide-based house-hold stuffs.
DECOMPOSITION MECHANISM
Hydrogen peroxide was discovered by a french chemist (J. Thènard) in XIX century. In the century-endings, a chemical engineer (H. J. H. Fenton) discovered a novel reaction of hydrogen peroxide (original formulation interested a mixture of peroxide with ferrous sulphate and tartaric acid).
In the first half of XX century, several german chemists (Haber, Willstatter and Weiss) contribute to study the “Fenton’s reaction”.
They reported that following results :
-) ferrous sulphate enhance hydrogen decomposition as it is highlighted by oxygen gas bubbles collected;
-) ferric soluble salts show a lower activity than ferrous ones.
Nowadays, it is assumed that ferrous salts interact with hydrogen peroxide so ferrous ions become ferric ones.
Fe++(aq) + H2O2(aq) —> FeOH++(aq) + OH(aq)
As an acid species, hydrogen peroxide acts producing oxydril radical (e.g. OH) which is a very reactive intermeditae of this mechanism.
It begins a couple of reaction connected one to the other as a “chain model”.
OH(aq) + H2O2(aq) —> HO2(aq) + H2O(l)
HO2(aq) + H2O2(aq) —> O2(g) + OH(aq) + H2O(l)
This “reaction’s chain” involving another very reactive intermediate as hydroperoxide radical (e.g. HO2) and it produces water and oxygen as decomposition’s products. Finally, superoxide anions interact with ferric ions toward oxygen evolution.
FeOH++(aq) + HO2(aq) —> O2(g) + Fe++(aq) + H2O(l)

I hope this helps you.

admin answers:

I think this means you need to balance the equation.
2H2O2(aq) –> 2H2O(l) + O2(g)

The stoichiometric coefficients are the numbers in front of the formulas.

admin answers:

There is no solid evidence that hyperbaric oxygen therapy is an effective treatment of autism. One small study found some evidence of improvement, but its results have not been confirmed. I recommend trying something more conventional, like occupational, behavior, and speech therapy, before experimenting with unproven treatments.

admin answers:

Hyperbaric therapy does help people that have the “bends” (decompression sickness) and helps in healing by increasing the amount of oxygen the blood can hold. It’s been used in the treatment of burns, carbon monoxide poisoning, smoke inhalation and flesh eating bacteria.

It should only be done as prescribed by a physician as there are some dangerous side effects. If you have asthma it will increase the likelihood of cerebral arterial gas embolism. (sudden onset of unconsciousness associated with a generalized or focal seizure. There is often confusion, vertigo (extreme dizziness) and cardiopulmonary arrest.) In other moderate to severe forms of COPD, it’s likely the person will cease to breathe. There’s also barotrauma to the ears.

If you live in the U.S., it’s expensive and insurance will only cover it as prescribed by a doctor. I can’t imagine this as an elective procedure unless there is strong medical need for it.

admin answers:

Ab2 could be linear, like O=C=O

O = -1 in H2O2

N2O3 is dinitrogen trioxide

Mg(OH)2 —> MgO + H2O

Coefficients appear in front a a formula in a chemical equation.

admin answers:

First off, i ain’t double checking. If it’s right, then good.

Anyway, here we go.

(For any i don’t know, I’ll say pass)

1) B. It’s 2 moles of oxygen.

2) C. Mass number is protons + neutrons.

3) B. I’m pretty sure that in an isotope, proton numbers remain constant. Therefore, to remain neutral, the electrons must number the same.

4) A. Simple.

5) C. Avogadro’s constant states that there will be 6.022 x 10^23 atoms in any given mole of substance, and that the mole of said substance is the total atomic weight in grams. Therefore, i doesn’t matter which elements were picked. The atom count remains the same.

6) C. Read above statement.

7) C. It is found by dividing the mass of substance (m) over the molar mass of substance (M). It looks like m/M.
D. Again, read above statement. Although, instead of the weight being shown, you would do Mx3.5, then relate the answer in grams.

9) D. Simple math.

10) A. I think. You may want to double check. The principle is, just see how many moles of substance there is, then find the appropriate atom count to submit.

11) B. Maths.

12) D. CaCl2. The single valence electron f the chlorine doesn’t match the double valence of the calcium.

13) the first of the passes. I could hazard a guess at A, but i cant be sure.

14) again pass. If i had to pick, I’d go B.

15) D or A. Beyond that i cant pick.

16) B. I’m 95% sure.

17) A. Again I’m not 100%

(as you can no doubt see, naming compounds is a weakness of mine.)

18) A. Not 100%, but pretty sure.

19) C. See above.

20) B. And again.

There was an acronym i was taught: OILRIG. It means: Oxidation Is Loss, Reduction Is Gain. That’s all i can help with on this matter. Soz.

21) pass.

22) hazarding a guess at B.

23) i can’t do the math in my head, and i can’t find my periodic table. What you have to do is add up all the molecular weights of the elements. Also, you need to repeat the value of any element that is also repeated the same amount of times. If that makes sense.

24) C. It’s the closest i got when i counted.

25) no clue. Sorry, another pass.

Alright, that’s them all. Hope these helped.

If anyone has answers for the ones i passed, or corrections for me, please don’t hesitate to edit or copy the note; whatever it takes to put it right.

G

(thanks to salusbury [i think thats it] for supplementing what i got wrong. I only explained my answers so you could understand why it was so.)

admin answers:

Assuming you’re asking if hyperbaric therapy helps w/ CP… From what I’ve researched (and what our daughter’s neurosurgeon has said), the evidence for it is anecdotal only. Some people say it seems to help, others say it did no good.

admin answers:

Although I do not know A) Where Bournmouth is or B) Where a hybaric treatment center is in your area, I can say that here in the states a private party could not buy a hyperbaric chamber.

I would recommend that you contact your local hospitals and ask them if they can assist you.

I wish you and your family good luck and all the best.

PS. Regarding the post by previous member, who is to say that God is not leading you to find a hyperbaric treatment center for your child? I fully believe in the technology that Hyperbarics has proven successful in treating.

admin answers:

You have obviously never come across the excellent Chemguide site. This takes you through this simply explained and your first equation is one of the examples explained in detail.

Http://www.chemguide.co.uk/inorganic/redox/equations.html

admin answers:

Something is wrong.

I think you need H+ to balance on right.

H2O2(aq) + NO2(g) —> NO3-(aq) + H2O(l) + H+

OK – looking over pisg… Answer:

2H+ + H2O2 + 2e- –> 2H2O …… Reduction half-reaction
2(NO2 + H2O –> NO3^- + 2H+ + 1e-) …… Oxidation half-reaction

let’s focus on this : 2H+ + H2O2 + 2e- –> 2H2O

In chemistry, there are “electron transfers” so you can think in terms of “half cell reactions” or “redox reactions”

the 2e-s is a balancing deal for now it makes that top line charge neutral.

Similar for the second line and the one electron.

So….. Both of these reactions need to occur at the same time.

Which means you need to DOUBLE the second reaction to ultimatley have the e-s cancel out.

I tried simplier techniques to get the answer and was running into trouble. This one gets you there.