What happens when you add h2o2 to a boiled potato?

What is the enzyme activity when h2o2 is added to a boiled potato?

How effective is the Hyperbaric Oxygen Therapy in elderly patients with diabetes?

how long will it take for this to start working….?

i put some dxm in a bowl with h2o2 to try and oxidize it and have it turn into an opiate (i guess its a dumb idea, but wats done is done. how long do you think i should wait to see if it worked? and anyone got any ideas on how to see if it worked without drinking h2o2, lol

i also have a bowl with 3mgs of melatonin, 500mgs of MgO, and about a quarter of a bowl full of water, i was hoping the melatonin wud undergo amide hydrolysis and turn into a hallucinogen, how long will it take for that to happen? cud i just wait until i smell vinegar?(im assuming that thats what gives vinegar its smell)

I’m falling into depression because of my loneliness …?

I don’t know if anyone reads it or not, but it doesn’t matter, maybe just writing it down will make me feel better, maybe. Maybe the keyboard is my only trusted friend right know.

Here it begins: I am S.N., 21 years old boy, born and living in a goddamn country called Iran.

I’m the only child of my parents, a 58 years old painter man (artist) and a 51 years old depressed, neurotic, hermit, communist and obsessive (don’t know if it’s the correct word, she washes a lot and cares about clarity and dirt abnormally) woman who rejects any kind of therapy. Who has no friends and spends most of her life in front of TV watching garbage TV series of Iranian governmental television.
As you may have guessed, she is my biggest problem (and source of nearly all my other problems).

Ever since I can remember, she was trying to make me someone like herself, pretending that it’s good to have no friends, that it’s better for me to sit on chair all day long during summer and so on…

When I reached around 14-15, I realized that everything that she said to me is far from reality, I found myself being different from other guys in the school, shy and stressed without any kind of self confidence. There were friend groups and I was not member of any of them. So I tried, I tried hard to change myself, to live like other children, to be cool, to be someone whom everyone likes him. To be honest, I was never completely successful but I was successful enough to be labeled as normal and join friend groups.

But it was just a beginning, Every time I was invited to hangout with my friends, my mother yelled: NO! NO WAY! YOU’RE NOT GOING ANYWHERE! IF YOU GO, I WON’T FEED YOU ANYMORE! And I had to reject the invitation, and you know, when you reject your friends for 3 or 4 times, you wont be invited any more and you’re out of that group for ever.

All the mid-school passed this way, I was kind of alone and useless in school and everyone knew that this was all because of my mom’s influence on me and you know mocking and…

Then I entered high school and the problem just got bigger and bigger.

Every time I saw two friends together, it was like the whole world collapsed on my head and I was burning in the fire of Jealousy.
In the last two years of high school, I was heavily depressed and hopeless. Days pass with me crying for hours in my bed, begging God to help me…

Then it was time for university, that was like a warm sun in my winter; I found bunch of really good friends, I was becoming the one that I always wanted to be, happy at the time and full of positive thoughts about future.

But my nightmare caught me again, invitations and me rejecting them for different excuses and trying to not to lose my friends.
And when they talk about their trips, it’s like I’m being bombarded. I come home and start crying in my bed. Then I go to psychology-related websites and read other people’s writings whom have similar problems and are lonely, without friends, I cry for them too; because I know how they feel, kinda sympathy and it relaxes me a bit.

Now My friends are planning a trip and I know if I reject the offer this time, I will lose everything again, I will face the same familiar hell of loneliness in the remaining two years of university. And if I accept it, another hell, facing my mom yelling at me, of her crying and shouting I’M CRAZY, I’M MAD WHY ARE YOU DOING THIS TO ME? WHY DO YOU WANT TO KILL ME? ! YOU CANT CHANGE ME! YOU HAVE TO SUFFER! Like she did every time I tried to talk to her.

Here it’s me, in bed for a week, crying, without any solution. Thinking about why I’m still listening to her when I’m 21? Why can’t I leave this house forever? Why am I such a loser? Why did I lose to a loser whom was alone and depressed for all her life?
And other things come to my head: Did you ever do a useful thing to the world? Are you anything but a useless (like my mom called me once) loser who just consumes and wastes oxygen? Don’t you know that you’re gonna pass the rest of your life like you passed the past 20 years as a loser? So why do you live?

Many things that are very simple for most of people are a far, unreachable wish for me: having a girlfriend, going to a trip, being in a party, having memories about friendship, …
So before you ask anything, I’ll answer them:
1.Why don’t you get a job and leave home? Like I said, I live in a trash called Iran. It’s almost impossible to find a job at my age. Here, people usually get independent at about 25.
2.Why don’t you get a part-time job? Cause then I will be paid for about 200-300 dollars a month and average price for renting a small apartment in a not-so-good place of Tehran in above 500 dollars per month; let alone other things.

So what should I do know?

thank you if you read it, please let me know if you did so cause in eases my pain. And sorry for my poor English.
Thanks everyone, I talked to my dad and he tried talking sense to her. She started to crying and yelling again but finally surrendered and I’m gonna go to that trip.
I still need psychologist but everything is a lot more better now.
I wish everyone of you luck and happiness in life…

In the decomposition of H2O2, would the rate of production of water be equal to that of oxygen?

If they are not equal, how are they related?

Water = ?[H2O] / ?t
oxygen = ?[O2] / ?t

Can you help me answer any of these chemistry questions?

The person who can answer the most questions gets best answer. Only the first person who answers the queston can get points for it.

1. Lithium consists primarily of two isotopes with mass numbers 6 and 7, respectively. Write the nuclear symbols for each of these isotopes. Given the average atomic molar mass of lithium (see periodic table). which of the lithium isotopes predominates in nature? Explain.

2. Gold-198 is a beta producer with a half-life of 2.7 days that has been used as an implant for cancer therapy. For an implant containing 50 g of Au-198, approximately how much Au-198 remains after 1 week?

3. Explain what it means for an atom to be in an excited state and what it means for an atom to be in its ground state. How does an excited atom return to its ground state? What is a photon? How is the wavelength (color) of light related to the energy of the photons being emitted by an atom? How is the energy of the photons being emitted by an atom related to the energy changes taking place within the atom?

4. Do atoms in excited states emit radiation randomly, at any wavelength? Why? What does it mean to say that the hydrogen atom has only certain discrete energy levels available? How do we know this? What does it mean to say that the energy levels of an atom are quantized?

5. What do the principal energy levels and their sublevels represent for a hydrogen atom? How do we designate specific principal energy levels and sublevels in hydrogen? Describe the sublevels and orbitals that constitute the second principal energy level of hydrogen. How are the individual orbitals in these sublevels designated?

6. List the order in which the orbitals are filled as the atoms beyond hydrogen are built up. How many electrons overall can be accommodated in the first and second principal energy levels? How many electrons can be placed in a given s subshell? In a given p subshell? In a specific p orbital? Why do we assign unpaired electrons in the 2p orbitals of carbon, nitrogen and oxygen?

7. Define the valence electrons in an atom. Define the core electrons in an atom. Why are the valence electrons more important to the atom’s chemical properties than the core electrons? How is the number of valence electrons in an atom related to the atom’s position on the periodic table? What evidence convinces us that the 4s subshell fills before the 3d subshell?

8. What bond angle results when there are only two valence electron pairs around an atom? What bond angle results when there are three valence pairs? What bond angle results when there are four pairs of valence electrons around the central atom in a molecule? Give examples of molecules containing these bond angles.

9. How do we predict the geometric structure of a molecule whose Lewis structure indicates that the molecule contains a double or triple bond? Give an example of such a molecule, write its Lewis structure, and show how the geometric shape is derived.

10. Write Lewis electron structures for each of the following molecules or ions, and use the VSEPR theory to predict their geometric shapes. If resonance is possible for any of the molecules or ions, draw all likely resonance structures. a. GeC4 b. NO3 c. SO4-2 d. SO3-2 e. SO2 f. O2 g. O3 h. CH3NH2 i. C2H6 j. C2H4 k. BF3 l. BeF2 m. NO2- n. PF3 o. N2H4

11. Describe some of the physical properties of water. Why is water one of the most important substances on earth?

12. Define the normal boiling point of water. Why does a sample of boiling water remain at the same temperature until all the water has been boiled? Define the normal freezing point of water. Sketch a representation of a heating/cooling curve for water, marking clearly the normal freezing and boiling points.

13. Are changes in state physical or chemical changes? Explain. What type of forces must be overcome to melt or vaporize a substance (are these forces intramolecular or intermolecular)? Define the molar heat of fusion and molar heat of vaporization. Why is the molar heat of vaporization of water so much larger than its molar heat of fusion? Why does the boiling point of a liquid vary with altitude?

14. What is a Dipole-dipole attraction? How do the strengths of dipole-dipole forces compare with the strengths of typical covalent bonds? What is hydrogen bonding? What conditions are necessary for hydrogen bonding to exist in a substance or mixture? What experimental evidence do we have for hydrogen bonding?

15. Define dispersion forces. Are London forces relatively strong or relatively weak? Explain. Although London forces exist among all molecules, for what type of molecule are they the only major intermolecular force?

16. Why does the process of vaporization require an input of energy? Why is it so important that water has a large heat of vaporization? Define the equilibrium vapor pressure of a liquid. Describe how this pressure arises in a closed container. How is the magnitude of a liquid’s vapor pressure re
17. Define a crystalline solid. Describe in detail some important types of crystalline solids and name a substance that is an example of each type of solid. Explain how the particles are held together in each type of solid (the interparticle forces that exist).
18. Define a solution. Describe how an ionic solute such as NaCl dissolves in water to form a solution. How are the strong bonding forces in a crystal of ionic solute overcome? Why do the ions in a solution not attract each other so strongly as to reconstitute the ionic solute? How does a molecular solid such as sugar dissolve in water’? What forces between water molecules and the molecules of a molecular solid may help the solute dissolve? Why do some substances not dissolve in water at all?
19. Define a saturated solution. Does saturated mean the same thing as saying the solution is concentrated? Explain. Why does a solute dissolve only to a particular extent in water? How does formation of a saturated solution represent an equilibrium’?
20. A solution of 7.50 g of a nonvolatile compound in 22.0 g of water boils at 100.78oC. What is the molecular mass of the solute?
21. The freezing point of water is lowered to -0.390oC when 3.90 g of a nonvolatile molecular solute is dissolved in 475 g of water. Calculate the molar mass of the solute.
22. What is the freezing point of a solution of 12.0 g of carbon tetrachloride dissolved in 750 g of benzene? freezing point of benzene is 5.48oC, kb= 2.53oC.kg/mol.
23. What is the freezing point of these solutions?
a. 1.40 mol of Na2SO4 in 1750 g of water b. 0.60 mol of MgSO4 in 1300 g of water
24. What is the molar mass of a compound if 4.80 g of the compound dissolved in 22.0 g of water gives a solution that freezes at -2.50oC?
25. What is the molality of a solution containing 100.0 g of C2H6O2 in 150 g of water?
What is the boiling point of this solution? What is the freezing point of this solution?

What is the moles per liter concentration of H2O2 in the solution?

A solution of hydrogen peroxide, H2O2 , is titrated with potassium permanganate, KMnO4 , according to the following equation:

5 H2O2 + 2 KMnO4+ 3H2SO4 -> 5O2 + 2 MnSO4 +8H2O + K2SO4
It requires 6.40mL of a 0.063M solution of KMnO4 to titrate 10.0 mL of the solution of H2O2

What is the moles per liter concentration of H2O2 in the solution?

is it 0.1008?

is high flow oxygen therapy dangerous for patients with severe pulmonary hypertension?

just wanted to find out if high flow oxygen therapy can release blood clots or cause a stroke if administered suddenly to patients with severe pulmonary hypertension.

What are some things i can do when getting over thrush?

I got thrush, possibly my body’s response to antibiotics. I wasn’t able to eat for a week, until today when i finally had soup. I know there are certain things i am not supposed to eat or drink, but my gums are itching like crazy. Would it be ok to swish H2O2? I have been taking my nystatin, yuck!, but i was also wondering if I HAD to finish it if the symptoms clear before i did. I hate that stuff sooo much!

My mom’s 6 month lung cancer check up is tomorrow?

Hi there. My mom had stage 3 non small cell lung cancer. It was on the outside of her right lung, between the lung and the esophagus. Because of the location it was inoperable. She had radiation and chemo therapies. She did very well. She did get sick on the chemo, no energy, lost her hair, she has burn type marks on her back and chest areas from the radiation and she lost a ton of weight.

That was last year. She started getting sick last February 2010. We went on vacation in May and she was SO sick. We thought she had bronchitis, which is what the doctors kept saying, that’s how it all started.

Now, she has gained back a total of almost 40 pounds (she was under 100 pounds during therapy), her hair is back and curly as a poodle, her energy lags at times but seems good! She’s no longer coughing or shot or breath. No need for oxygen! We are going on vacation again in a week and I just can’t wait.

However, she has her first 6 month check up tomorrow. She already had her scan (I’m not really sure how they do it other than they inject some kind of dye in her and do a scan of the area?). She gets it read tomorrow, her doctor has been on vacation.

She’s a real trooper! And I will not let her see how worried I am, I keep an upbeat attitude and a smile on my face for her and dad.

My question is – for anyone that had/has cancer or anyone with family members/loved ones with cancer – what can I expect from the first 6 month check up? I’m very nervous and I would just like an idea of what to expect!

Thank you so much!
Blessed be!