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iVinArrow [24]
4 years ago
13

Process of crystallization. PLS HELP!!!!

Chemistry
1 answer:
bekas [8.4K]4 years ago
6 0
Answer : I hope this helps !

Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas.
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MULTIPLE CHOICE: For a combustion system, incorrect statement is?
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3 years ago
The ksp of pbbr2 is 6.60×10−6 . What is the molar solubility of pbbr2 in pure water?
frez [133]

Answer:

  • <em>The  molar solubility is</em> <u>0.0118 mole / liter = 1.18 × 10⁻² M</u>

Explanation:

1) <em><u>Ksp </u></em>stands for product solubility constant.

2) The <u>product solubility constant </u>is the equilibrium constant used for the aqueous ionization (dissolution) of low soluble ionic compounds.

3) The ionization or <u>equilibrium</u> reaction for the PbBr₂ is:

  • PbBr₂ (s) ⇄ Pb²⁺ (aq) + 2 Br(aq)⁻

4<u>) Sotichiometry</u>:

  • PbBr₂ (s)                 ⇄ Pb²⁺ (aq) + 2 Br(aq)⁻

       Ao -  x moles                   x                 2x

5) <u>Calculations</u><u>:</u>

Per definition of Ksp:

  • Ksp = [Pb²⁺] [Br(aq)⁻]² = (x) (2x)²  = 4x³

  • Then, you have to solve:  6.60×10⁻⁶ = 4x³

  • x³ =   6.60×10⁻⁶ / 4

  • x = 0.0118 mole / liter = 1.18 × 10⁻² M
5 0
3 years ago
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