KonkreteRocketry
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Balanced equation and some questions for some experiements.
I will make Copper carbonate and Sodium Nitrate by mixing 2 solutions of copper II Nitrate and sodium carbonate.
Can i have the balanced equation for this reaction please ?
Cu(NO3)2 + Na2CO3 = CuCO3 + 2 NaNO3
I will also make Copper Acetate by using 6% Acetic acid C2H4O2 solution and Copper oxide, CuO, not calcined.
CuO + C2H402 = C2H3O2Cu + ?
Also, if i use warm water the reaction will happen relatively faster ?
and, i think i need to boil the Acetic acid solution for the Copper acetate one right ? can i even use copper oxide ?
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DraconicAcid
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Quote: Originally posted by KonkreteRocketry  | I will make Copper carbonate and Sodium Nitrate by mixing 2 solutions of copper II Nitrate and sodium carbonate.
Can i have the balanced equation for this reaction please ?
Cu(NO3)2 + Na2CO3 = CuCO3 + 2 NaNO3[/rquote]
That is balanced, but the actual product is usually a basic copper(II) carbonate:
2 Cu(NO3)2 + 3 Na2CO3 + 2 H2O -> Cu2(OH)2CO3(s) + 4 NaNO3 + 2 NaHCO3.
[rquote]I will also make Copper Acetate by using 6% Acetic acid C2H4O2 solution and Copper oxide, CuO, not calcined.
CuO + C2H402 = C2H3O2Cu + ?[/rquote]
Copper(II) acetate is Cu(C2H3O2)2; the other product is water. (By the way, don't capitalize the names of compounds- they are not personal names or
places.)
[rquote]Also, if i use warm water the reaction will happen relatively faster ?
and, i think i need to boil the Acetic acid solution for the Copper acetate one right ? can i even use copper oxide ? |
The reaction with carbonate is pretty fast. The acetic acid one may not work even when boiling. You're better off reacting the basic copper
carbonate with acetic acid to get the acetate.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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KonkreteRocketry
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| Quote: Originally posted by KonkreteRocketry | | Quote: Originally posted by DraconicAcid | | Quote: Originally posted by KonkreteRocketry | I will make Copper carbonate and Sodium Nitrate by mixing 2 solutions of copper II Nitrate and sodium carbonate.
Can i have the balanced equation for this reaction please ?
Cu(NO3)2 + Na2CO3 = CuCO3 + 2 NaNO3[/rquote]
That is balanced, but the actual product is usually a basic copper(II) carbonate:
2 Cu(NO3)2 + 3 Na2CO3 + 2 H2O -> Cu2(OH)2CO3(s) + 4 NaNO3 + 2 NaHCO3.
[rquote]I will also make Copper Acetate by using 6% Acetic acid C2H4O2 solution and Copper oxide, CuO, not calcined.
CuO + C2H402 = C2H3O2Cu + ?[/rquote]
Copper(II) acetate is Cu(C2H3O2)2; the other product is water. (By the way, don't capitalize the names of compounds- they are not personal names or
places.)
[rquote]Also, if i use warm water the reaction will happen relatively faster ?
and, i think i need to boil the Acetic acid solution for the Copper acetate one right ? can i even use copper oxide ? |
The reaction with carbonate is pretty fast. The acetic acid one may not work even when boiling. You're better off reacting the basic copper
carbonate with acetic acid to get the acetate. |
Oh thank you, than how much of sodium carbonate and copper nitrate shall i put in the first place to get exactly same amount of sodium nitrate and
copper carbonate in the end ?
and why can't I use Copper Oxide ? |
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DraconicAcid
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I'd use excess sodium carbonate, just to make sure you get most of it out. For a gram of copper(II) nitrate (which I assume would be the trihydrate,
so 4.1 mmmol), you would need about 0.44 g sodium carbonate. You would need about 5 mL vinegar (approximately 1 mol/L acetic acid) to turn that into
the acetate.
Copper oxide is very slow to react even with strong acids. Commercial copper(II) oxide has to be heated to react with hydrochloric acid (in my
experience). If you make it and collect it by filtration, it's either very mushy (and a pain to work with), or you dry it well and then it won't
react with acetic acid.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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KonkreteRocketry
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| Quote: Originally posted by DraconicAcid | I'd use excess sodium carbonate, just to make sure you get most of it out. For a gram of copper(II) nitrate (which I assume would be the trihydrate,
so 4.1 mmmol), you would need about 0.44 g sodium carbonate. You would need about 5 mL vinegar (approximately 1 mol/L acetic acid) to turn that into
the acetate.
Copper oxide is very slow to react even with strong acids. Commercial copper(II) oxide has to be heated to react with hydrochloric acid (in my
experience). If you make it and collect it by filtration, it's either very mushy (and a pain to work with), or you dry it well and then it won't
react with acetic acid. |
My CuO was collected by thermal decomp of Cu(NO3)2, i heated it at over 250 degree for 30 min.
and can maybe i think u shall use extra copper 2 nitrate.
Balanced equation
Cu(NO3)2 + Na2CO3 -> CuCO3 + 2 NaNO3
Balanced mass
241.6024 + 105.98861 =
Copper carbonate ~ 241(Cu(NO3)2(H2O)3)-62.005(NO3)-62.005(NO3)-54.046(trihy)+60.001(CO3)
+
2 Sodium Nitrate ~ 105.98861(NaCO3)-60.001(CO3)+62.00501(NO3)-22.989769(Na)
=
63.894 % of Cu(NO3)2
36.106 % of Na2CO3
and result
=
57.909 % of NaNO3
42.091 % of CuCO3
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DraconicAcid
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Then I strongly suspect it will be too calcined to react with acetic acid. You can probably get it to react with sulphuric or hydrochloric, though.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Metacelsus
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Agreed. I have not had success with making cupric acetate via cupric oxide. Basic cupric carbonate works fine, though. If you really need acetate, you
could try converting the oxide to the chloride with HCl, precipitating basic cupric carbonate with Na2CO3, and then reacting with acetic acid. Make
sure you use excess acetic acid; I find the yield is poor when stoichiometric proportions are used.
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elementcollector1
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...Electrolyze a vinegar solution with two copper electrodes?
It's in those home plating walkthroughs on Ask.com and Instructables, the copper dissolves to form a light blue solution. I did it when I needed a
copper-plated quarter once.
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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CHRIS25
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Am I perhaps missing something here? I made copper acetate by putting clean oxidized free Copper chunks (Use 1 M Sulphuric acid to do this bit as a
final dip after thorough cleaning) into 40% acetic acid solution, no heating required, can take between 6 hours to 24 hours depending on your amounts
of course. Perhaps this is not what you are looking for?
[Edited on 8-3-2013 by CHRIS25]
‘Calcination… is such a Separation of Bodies by Fire, as makes ‘em easily reducible into Powder; and for that reason ‘tis call’d by some
Chymical Pulverization.’ (John Friend, Chymical Lectures London, 1712)
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. (William Penn 1644-1718)
The very nature of Random, Chance development precludes the existence of Order - strange that our organic and inorganic world is so well defined by
precision and law. (me)
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