I know the equation is:Base + acid ------< salt + waterAcid is sulphuric acid. But the base is copper oxide. But why is it copper oxide? Because its a metal oxide? And metal oxide is a base?Then why cant i say Metal + acid---> salt+ hydrogen?Why must it be base+ acid -> salt + water?How do u know copper(II) is a base not a metal in this case?I hope u understand my question. Hard to phrase it :P
when we say Cu(ll) it means that it is a cation of Cu. it is Cu+2, so there is an anion either. like SO4-2(anion). We can use the second reaction but the first one is cheaper and safe. If u think that it is not enough, ask. good luck
I want to make cuso4 with sulphuric acid, copper powder and oxygen in commercial quantity please advise Dr.pkjain
Metal oxides reacts with acids similar to an acid-base reaction: CuO + H2SO4 ------> CuSO4 + H2O
Not really. If you must know, your question is rambling and a bit hard to follow. Do you want to know why you need to react CuO with H2SO4 to make CuSO4(aq) and not simply react copper metal with H2SO4 to make copper sulfate? We'll put the answer in the form of a couple of chemical equations... CuO(s) + H2SO4(aq) --> CuSO4(aq) + H2O(l) Cu(s) + H2SO4(aq) --> no reaction That should sum it up. Copper metal does not react with sulfuric acid. Copper(II) oxide is what we call a basic anhydride. The word anhydride literally means without water. If you take a water molecule away from Cu(OH)2, an Arrhenius base, you get CuO. Take away water.... Cu(OH)2 = Cu-OH-OH (copper and two hydroxides) --> CuO--HOH (see the water?) --> CuO + H2O (evaporate the water to leave the basic anhydride) Basic anhydrides react with acids, just as bases do. CuO + H2SO4 --> CuSO4(aq) + H2O(l) As for copper metal and acids.... Metals above hydrogen in the activity series easily react with acids to produce the metal ion and hydrogen gas. Copper is below hydrogen in the actiivity series and does not react with the H+ in acids. It therefore, won't react with H2SO4. Copper does react with HNO3, though. But not for the reason you might think. Copper is oxidized by the nitrate ion, NO3-, to Cu2+, while NO3- is reduced to NO gas. When copper reacts with nitric acid we see a reddish brown gas, which is NO2, coming off. The reaction produces NO, which combines with oxygen, O2, to make NO2 gas. From this information you should be able to formulate answers to your questions. .
