Chemistry Forum

in a closed vessel there are 0.1 moles of a liquid alkane and oxygen stoichiometric combustion alkanes. Knowing the ratio of the pressure in the pressure vessel before firing and after firing is 1.55 and pressures are measured at same temperature of 27 C, alkanes formula is? [/ img] Write general re...

Acetylene will not react with acetone under ordinary conditions. In fact, acetone is being used as an acetylene stabilizer in high pressure tanks because acetylene by itself may explode at pressures higher that 15 psi.
http://navyaviation.tpub.com/14018/css/14018_642.htm

CH3COOH is acetic acid, liquid, and it's volatile. You can evaporate it while KCl will remain as a solid.

Rarely any drugs are sold as pure API (active pharmaceutical ingredient), and aspirin is not an exclusion. See for example http://pakjp.pk/articles/16092012031421.pdf The aspirin that you titrated maybe wasn't 100% acetylsalicylic acid. As a drug form it may contain starch, sugars or silica gel for ...

US Patent US3267644 http://www.google.com/patents?id=2oxSAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q&f=false recommends using mixture of silica gel and alumina gel. Both absorb moisture while alumina gel also absorbs HCl. In a case of high HCl concentration, pass vinyl chloride thr...

Zinc reacts with nitric acid very vigorously instantly reducing it at the point of contact to ammonia. Since nitric acid usually taken in excess, ammonia reacts with it with formation of ammonium nitrate.

Here is a clue:
http://en.wikipedia.org/wiki/Iron(II)_sulfate
2 FeSO4 → Fe2O3 + SO2 + SO3

Please, solve the rest on your own

Here are some helpful references:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1057154/
http://www.wpi.edu/Pubs/E-project/Avail ... Formal.pdf
http://www.pnas.org/content/78/2/1047.abstract

Maybe you should use oxygen to make more oxygen from gold http://www.sciencedirect.com/science/article/pii/0029558260901024 At least something to start with. I'm sure, shooting a goldbar into the Sun will cause random nuclear processes producing smallar particles, and one of them will be oxygen. Not...

No, it does not react. It doesn't catalyze degradation either, alyhough, there is a high chance of other metal impuritues (Fe, Ni, Co, Mn, etc) that van catalyze degradation of H2O2 to H2O and O2

Also read this topic http://en.wikipedia.org/wiki/Avogadro_constant

Please check your task. C12C16 doesn't make sense

The reaction is simply impossible.
CuCl + KI = CuI + KCI maybe possible

Apparently an error. Fe2S4 is not quite known as a compound, although possible as overall mixture. Maybe you meant FeSO4?

In any case, if you can't do it manually the use tools here
http://www.webqc.org/balance.php

2 Fe2S4 + 11 O2 = 2 Fe2O3 + 8 SO2

It's not clear why you eally want to do this. 98% is as good as 100% for most purposes