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What Happens When Lead Nitrate Solution Treated with Calcium Chloride Solution and Products Are Heated and Cooled.

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Question

What happens when
Lead nitrate solution treated with calcium chloride solution and products are heated and cooled.

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Solution

When lead nitrate solution is treated with calcium chloride solution it forms white ppt. of lead chloride and calcium nitrate
CaCl2(s) → Ca2+(aq) + Cl-(aq)
\[\ce{Pb(NO3)2(aq) -> Pb^{2+}(aq) + NO^{2-}_{3}(aq)}\]

\[\ce{Pb^{2+}(aq) + NO^{2-}_{3}(aq) + Ca^{2+}(aq) + Cl-(aq) -> PbCl2 + Ca(NO3)2}\]

On further heating and cooling the products, calcium nitrate decomposes upon heating to release nitrogen dioxide:
2Ca(NO3)2 → 2CaO + 4NO2 + O2

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Chapter 18: Practical Work - Exercise 1 [Page 307]

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Frank Chemistry Part 2 [English] Class 10 ICSE
Chapter 18 Practical Work
Exercise 1 | Q 5.4 | Page 307
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