28. Solving a chemistry problem

28. Solving a chemistry problem

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5. To 200 g of a 5% solution of Pb(NO3)2 was added 50 g of a 4% solution of sodium sulfide. The resulting black precipitate was treated with an excess of H2O2 solution, and the precipitate turned white. Write the reaction equations and calculate the masses of black and white precipitation.

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  • Content type File
  • Content description 27,35 kB
  • Added to the site 23.04.2023
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

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