Author Question: The solubilities of ammonium bromide, NH4Br, in water at 0 C, 20 C, and 80 C are as follows: T (C) ... (Read 79 times)

Jipu 123 · **on:** Jul 8, 2021

The solubilities of ammonium bromide, NH₄Br, in water at 0 °C, 20 °C, and 80 °C are as follows:

T (°C) Sol. g NH₄Br/100 g H₂O
0 60.5
20 76.4
80 125

Which of the following fractional crystallization schemes would produce the highest percent yield for the recrystallization of ammonium bromide?
◦ A solution containing 50.5 g NH₄Br in 100.0 g H₂O at 20 °C is cooled to 0 °C.
◦ A solution containing 115 g NH₄Br in 200 g H₂O at 80 °C is cooled to 0 °C.
◦ A solution containing 120 g NH₄Br in 100 g H₂O at 80 °C is cooled to 20 °C.
◦ A solution containing 100 g NH₄Br in 100.0 g H₂O at 80 °C is cooled to 20 °C.
◦ A solution containing 95 g NH₄Br in 175 g H₂O at 80 °C is cooled to 0 °C.

harveenkau8139 · **Reply #1 on:** Jul 8, 2021

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