hehehehhe... why do we crystallise the product??..and why do we ethanol and water to crystallise them??
im a physics student.
but this chem question came accross me and i just wanna know to mak...
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Hi again,
I was doing some experiments on heat of combustion of various fuels and determine which fuel is better by creating a calorimeter. And its simple and straight forward but i started thinkin...
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Can somebody explain how do you write a Mass Balance or Charge balance for a acid-base equilibrium? Let say, if you are given 0.01M Zn(OH)2 in a saturated NaOH solution and also given that Zn(OH)2 + 2...
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I had a chlorine tablet get flushed from the toilet tank into the plumbing in the toilet where it is slowing the flow of water. I am trying to figure out how to get it to dissolve without causing any...
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We did a lab at our school recently but some of the questions regarding the lab confused me.
The data obtained from the lab is here:
Determining the Chemical Formula of a Hydrate
Purpose
Find t...
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for OCL-
and HOCL...
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do i have to use this formula Delta G=delta h- t*delta s
or could i calculate it like i calculate delta h, products - reactants...
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Hi,
Does anyone know any reasonably safe reactions - lab or home based - to make a half decent super glue?...
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Hi
I want to prepare thin films of WO3 by spray pyrolysis (thermal decomposiiotn) onto the glass substrates. After I want to deposit composite TiO2/WO3 thin films by the same technique. I have alread...
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I want to know how isolate salicin from willow bark or other parts of the plant....
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Hey people, I'm presuming most uni level people learn phys chem by Peter Atkins textbook..so..
What are people's opinion on the textbook? (Atkins and de paula, 'Physical chemistry') or generally a...
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We all know that Lignus Pauling was the creator of both concepts:
Hybridization and resonance. VB theory centered its strength over MO theory in the fact that they were able to better explain the c...
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Hi everyone
I've just got a few questions regarding some Chemistry stuff I've been doing out of my textbook (Year 11 Chemistry). We've been learning this in class, I thought I understood it, but I ...
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acidic strength is directly proportional or indirectly proportional to hydration energy ??
and
how to find that anion formed by aicd is stable or not??
Thanks!!...
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Recently I begun learning about molecular orbitals and the geometry of an sp orbital. It is my understanding that in the creation of an sp orbital with the combination of an s orbital and p orbital, ...
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Barium hydroxide forms several hydrates. A specimen of barium hydroxide, suspected of being a hydrate, was prepared and analyzed as follows to determine its formula.
3.632 g of the compound was dis...
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im wondering what reaction would likely occur
2NO (g) → N2(g) + O2(g) or the reverse
2CO (g) + O2(g) → 2CO2 (g) or the reverse
well the first one would occur if it were the reverse ...
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In order to prepare an insoluble salt, there must only be a solid present right? The rest must be soluble and in aqueous state right?...
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Let's consider the simple functional group C=O (carbon double bonded to oxygen). There is only one type of vibration for this group and that's the stretching mode, where C<=>O oscillates back a...
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Which structure will have the highest melting point?...
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Hi !
Does anyone have this program, please : Lipase Titrimetric Analysis program?????!!!! Or could anyone tell me where I can find it?
Thanks al lot!!!...
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1. Which molecule(s) are conductive when dissolved in water?
2. Which molecule(s) are covallently bonded and has the highest boiling point?
3. Which molecule(s) have bonds that are formed by tra...
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1. which letter shows a bond where electrons are being transferred?
2. which letter shoes a bond where electrons are equally shared?
3. which letter shows a bond that would cause each atom to beco...
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here is how i answered
1=a
2=b,c
3=b
4=a,c
5=a,b,c
what do you guys think? please check it up. Thanks!
1. Which force would cause a compound to have the highest boiling point?
a.) Hydrogen ...
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Hello, i would really appreciate it if someone could help me with this problem. I would like to know the pH of citric acid at various concentrations.
2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%....
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