In the lab,
1. we put sodium oxalate into lead nitrate
2. we put sulphuric acid into lead nitrate
After both solution has precipated, we removed the liquids andpour nitric acid to each of precipitates in seperate testtubes.
The observation was that
First tube was much thinner and the second tube become muchthicker (in terms of white-ish color) after adding nitric acid.
What is the reason for this difference?
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