loredanaprosser loredanaprosser
  • 10-06-2020
  • Chemistry
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When a saturated solution of NH4Br dissolved in 100 grams of water is cooled from 60°C to 30°C, how much NH4Br will precipitate?

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sebassandin
sebassandin sebassandin
  • 16-06-2020

Answer:

[tex]m_{precipitated}=24.8g[/tex]

Explanation:

Hello,

In this case, since at 60 °C, 108 grams of ammonium bromide are completely dissolved in 100 grams of water for a saturated solution, once it is cooled to 30 °C, wherein only 83.2 grams are completely dissolved in 100 grams of water, the following mass will precipitate:

[tex]m_{precipitated}=108g-83.2g\\\\m_{precipitated}=24.8g[/tex]

Best regards.

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