Question

Identify the product formed in each of the following during thermal decomposition
i) Calcium nitrate
ii) Hydrated copper sulphate

iii) Zinc carbonate
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Answer 1

Answer:

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Answer 2

1. Calcium nitrate decomposed on heating according to the equation: 2 Ca(NO3)2 - 2CaO + 4NO2 + O2 The molecular mass of calcium nitrate is 164 u. Calculate b. the volume of nitrogen dioxide (NO2) obtained at S.T.P. a the weight of calcium oxide obtained when 16.4 g of calcium nitrate is heated to constant weight.
2. The thermal decomposition of copper sulphate hydroxide hydrate, (CuO·CuSO4). ... During this process, the interplanar distances of the crystal lattice of copper sulphate hydroxide hydrate decrease. The time of decomposition of this compound essentially affects the decrease of the specific surface area.
3. The thermal decomposition of zinc carbonate has been studied isothermally at various temperatures between 200 and 260°C. ... The character of the kinetics is deceleratory, but in the region beyond 40% decomposition is approximately linear and due to the loss of carbon dioxide.