Can I separate water from Carbon tetrachloride by the method of fractional distillation? (I agree separating funnel is a better method)...
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Hello, could someone expalin me the concept of free energy. Please....
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Heloo, could someone explain me the concept of free energy please...
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Something I've been wondering alot lately is how would you make your own wood alcohol? It seems somewhat simple and I cant find any decent things on google about it. Anyone know how to make? Or have a...
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Different types and kinds of storing fuels
What will be the most dangerous way to store fuel if you must choose between gas / liquid.
1 Liter of Methanol
Or
1 Liter of Hydrogen...
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Question:
A buffer with pH 4.50 is needed. You have 1.00L of 1.80 mol/L solution. How many grams of Sodium Acetate (NaC2H3O2, molar mass 82.0 g/mol) must be added to give a pH of 4.50? pKa of acetic...
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How to make Methanol with involving electricity
Are there any method on making Methanol with electricity, H2O and CO2?
2 CH3OH + 3 O2 → 2 CO2 + 4 H2O...
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When Ethanol is talked about as a fuel, it's the same exact molecule in alcoholic beverages, right?
If that's the case, what is it about Ethanol that makes it preferable as a fuel to other alcohols...
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Hi All,
I'm working on a project that requires a flexible membrane be heated and cooled about 2000 times.
During the cooling process, I require the material give off heat for as long a period of...
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Hello,
I have synthesized a compound with two quaternary ammonium groups and two cyanide groups. I did the reaction in dmf, and after the reaction I poured the reaction medium onto ice-cold water. ...
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Do many chemists or technicians in the chemical businesses find much use for equilibrium calculations of weak acids or weak bases? In practice, laboratory people can make practical measurements, prac...
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I can not seem to understand what happens when you react ammonium with certain compounds. For example NH3 + Cu(NO3)2 = ???. How am I supposed to do this?...
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Im interested in making rust and I have a couple questions on it.
-I set up the electrosys idea (with a dc converter plugged in wall). I have a metal object on the positive wire (one that was bubbli...
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hey this is my first post and i have some sort of compound sitting in front of me that my teacher has asked me to figure out and i just need some help it looks like small black beads and are pretty s...
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How does hydrogen gas get into a piece of palladium metal such that the amount of hydrogen is 900 times the volume of palladium?A strong pump would be required to put 900 times the volume of a gas cyl...
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Does any one know where I can find information on these kinds of reactions such as the possible chemical combinations, reactions and decomposition temperatures, energy stored and released per unit mas...
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I have the answer to the problem... only my problem is I can figure out how in the world world they came up with it. Here it is... I am sure it a pretty easy equation... only I don't get it!
Calc...
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Does anyone use this exam board?? And if so does anyone by anychance happen to have completed the II (individual investigation) coursework before?? Anyone have an A grade copy of this coursework theyd...
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can anyone tell me how is the expiry date of a medicine determined?...
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My daughter and a large portion of her class are struggling in AP Chem. Any has any link or have any beneficial suggestion for her. She is very motivated.
She only has a grade of "C"...
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can anyone help me to find solvent to dissolve the Paraffin wax which i have?
i need to knoe what type of solvent can dissolve it plz....
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Currently in chemistry, we are doing titrations and buffers for acid base equilibrium. Ive noticed that titration curves have the distinct characteristics of sigmoid curves. So, can titration curves b...
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What is the charge on sodium in the following reaction, formation of 2Na^x +(CO3)^2-=Na2CO3 sodium carbonate? x=Unknown?
Choices are:
+3
+2
-2
+1
-1
HELPPP MEEE!!!
Ariel...
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I'm trying to teach myself the theory behind NMR spectroscopy, but I am having some trouble with some pchem/physics concepts that I have never seen before.
The chapter I am currently on talks abo...
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Does anyone know the molar absorption coefficient for acetonitrile? I need to know what wavelength the coefficient is at of course as well. Hopefully I can find one in the visible spectrum. My departm...
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