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algol13
3 years ago
11

Copper(II) carbonate undergoes thermal decomposition. One of the pro

Chemistry
1 answer:
Llana [10]3 years ago
8 0

Answer: The green copper (II) carbonate (CuCO_3) changes to black copper oxide (CuO)

CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)

Explanation:

Decomposition is defined as the chemical reaction in which a single compound gives two or more simple substances. It requires energy to break the bonds between reactants, thus is an endothermic process.

Thermal decomposition uses heat for decomposition.

The chemical equation for thermal decomposition of copper (II) carbonate is:

CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)

The green copper (II) carbonate (CuCO_3) changes to black copper oxide (CuO)

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Given parameters:

Initial volume  = 120ml

Initial temperature  = 35°C

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          \frac{P_{1}V_{1}  }{T_{1} }  = \frac{P_{2}V_{2}  }{T_{2} }

Where P₁ is the initial pressure

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          V₂ is the final volume

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           T₂ is the final temperature

We need to convert the parameters to standard units

take the volume to dm³;

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Final volume;

      1000ml = 1dm³

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We then input the parameters into the equation;

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FeS2 + 5 O2 2Fe2 + 4SO2 How many moles of FeO are formed from 0.57 moles of O2?
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from reaction                           5 mol       2 mol

given                                       0.57 mol    x

x = 0.57*2/5 = 0.228 mol FeO

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