Answer to Question #164865 in General Chemistry for joyce mae callao

Question #164865

What amount of water is needed to dissolve 450 g of Pb(NO 3 ) 2 at40°C?


1
Expert's answer
2021-02-22T05:51:17-0500

Pb(NO3)2 is a highly soluble compound


Maximum 530 g of Pb(NO3)2 can get solvated in 1 L of water at ~40°C (standard value)

So, 1 g of Pb(NO3)2 can get solvated in (1/530) L of water.

450 g of Pb(NO3)2 can get solvated in (1×450/530) L of water.

= 0.85 L

Hence, at ~40°C to dissolve 450 g of Pb(NO3)2, 0.85 L of water is needed.

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