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Akimi4 [234]
2 years ago
6

What is the concentration of each ion in a 0.525 mol/L solution of magnesium chloride? mg=? cl=?

Chemistry
1 answer:
Vladimir [108]2 years ago
3 0

Answer:

Mg⁺² = 0.525 mol/L

Cl⁻ = 1.05 mol/L

Explanation:

The formula for magnesium chloride is MgCl₂, and in a solution the following process takes place:

  • MgCl₂ → Mg⁺² + 2Cl⁻

By analyzing the stoichiometric coefficients, we can tell that <em>the concentration of Mg⁺² ions is the same as the concentration of MgCl₂</em>, while the <em>Cl⁻ concentration is twice that value</em>.

In other words:

  • Mg⁺² concentration = MgCl₂ concentration = 0.525 mol/L
  • Cl⁻concentration = 2 * MgCl₂ concentration = 1.05 mol/L
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Answer:

Explanation:

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= 5.82 x 10² kJ/mol

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.9667 X 10⁻¹⁸ J

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3 years ago
1.1 Outline a method for separating the chalk from potassium chloride,
miss Akunina [59]

Answer:

Explanation:

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Calcium carbonate has low solubility in water. KCl is readily soluble in water and it is also an ionic compound.

To separate a mixture of compounds with various solubility, we can carryout dissolution, filtration and evaporation.

We first pour pure water into the mixture. Water will dissolve the potassium chloride readily.

Then using a filter paper we filter out the suspended chalk particles. Leave the filtrate to then dry and collect it.

The solution filtered should be evaporated to dryness. This will leave the KCl behind from the solution.

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