Copper metal was just dipped into acid, it was not heated or anything. can someone give me a easy explanation? thanks
2007-11-17 08:32:18 · 4 answers · asked by purplelightning92 4 in Science & Mathematics ➔ Chemistry
typo: not react
2007-11-17 08:38:34 · update #1
Clean copper metal will not react with any acid, unless the acid is also an oxidising agent. This is because copper is below hydrogen in the activities series. (If you are very smart, you will notice that this is not really an explanation, just an impressive way of saying that copper is not reactive enough to react with acids.)
If the copper surface has been oxidised, the copper oxide will dissolve in acid.
If the acid is strongly oxidising, the copper can dissolve to make a solution of the copper salt. For example, copper dissolves in concentrated nitric acid to give you nitrogen oxides and copper nitrate in solution, and also in hot concentrated sulphuric acid to give you sulphur dioxide and copper hydrogensulphate in solution.
2007-11-17 08:47:52 · answer #1 · answered by Facts Matter 7 · 1⤊ 0⤋
Copper Acid
2016-10-14 10:06:01 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Copper DOES react with acid. Of course, the rate of reaction will be very different depending on the acid. If you were using acetic acid, for example, it would be slow and you won't see anything straight away. If you were using concentrated hydrochloric acid, then you would have seen bubbles of hydrogen gas forming on the copper surface and a light blue/green substance eventually being generated (CuCl2).
2007-11-17 08:38:39 · answer #3 · answered by Anonymous · 1⤊ 1⤋
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As reactants react proportionally,specific amounts in moles of product are formed By the time 5.58g Cu(NO3)2 is produced, 2/3 of its moles will equal NO being produced Since mole ratio (coefficients) between Cu(NO3)2 to NO is 3:2 Example: for every mole Cu(NO3)2 made, 2/3 mole NO is made Another example: 3 moles Cu(NO3)2 made, 2/3 x 3 = 2 mole NO made 5.58g x 1 mol Cu(NO3)2/ 187.56g = 0.0298 moles Cu(NO3)2 obtained Moles NO formed = 0.0298 x 2/3 = 0.0199 moles NO obtained 0.0199 moles x 30g/1 mol NO = 0.596 grams NO formed
2016-04-06 04:00:41 · answer #4 · answered by ? 4 · 0⤊ 0⤋
when copper(Cu) reacts with nitric acid(HNO3) : Cu + 2HN03 -> CuNO3 + NO2< ↑> + H2O
2016-03-13 23:36:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋