The first part: 38324:
3Cu+8HNO3 (diluted) = 3cu (NO3) 2+2no =+4h2o.
38324 is the equilibrium coefficient of the reaction between dilute nitric acid and copper.
Downline: 14 122:
Cu+4HNO3 (concentrated) =Cu(NO3)2+2NO2↑+2H2O
14 122 is the equilibrium coefficient of the reaction between concentrated nitric acid and copper.
The chemical reaction equation strictly abides by the law of conservation of mass. After writing the chemical reaction equation, the number of atoms on the left and right sides is often unequal, which does not conform to the law of conservation of mass. This needs to be solved by calculating the balance.
Extended data:
According to the poetic requirements, the analysis is as follows:
(1), according to the principle of hydrolysis, write the hydrolysis product first:
AI？ (So? )? +Na2CO？ -ai (oh)? ↓+CO？ ↑+Na2SO？
(2) Because we want to "choose who is weak", we should choose AI. +and CO-.
(3), add coefficient charges, etc. Because AI3+ has three positive charges, but in AI? (So? )? There are two AI3+, so there are six positive charges; CO- has two negative charges, which makes it "charge, etc.". We must add a coefficient of 3 before CO-, so we get:
AI？ (So? )? +3Na？ CO？ -2ai (oh)? ↓+3CO？ ↑+3Na2SO？
(4) "Water is often added to the reaction formula". Because there are six H's in the product, "3H2O" should be added to the reactant.
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