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Magnesium oxide when mixed with a satura...

Magnesium oxide when mixed with a saturated solution fo `MgCl_(2)`, sets to a hard mass known as 'Sorel cement' is formed. The composition of sorel cement is `MgCl_(2).nMgO.xH_(2)O`. What is the value of `n`?

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To determine the value of \( n \) in the composition of Sorel cement, which is represented as \( \text{MgCl}_2 \cdot n \text{MgO} \cdot x \text{H}_2\text{O} \), we can follow these steps: ### Step 1: Understand the components of Sorel cement Sorel cement is formed by mixing magnesium oxide (\( \text{MgO} \)) with a saturated solution of magnesium chloride (\( \text{MgCl}_2 \)). The resulting product consists of magnesium chloride, magnesium oxide, and water. ### Step 2: Identify the known composition From the information provided, we know that Sorel cement has a specific composition. It is stated that the composition can be represented as \( \text{MgCl}_2 \cdot n \text{MgO} \cdot x \text{H}_2\text{O} \). ### Step 3: Determine the value of \( n \) In the case of Sorel cement, it is established that the composition includes 5 molecules of magnesium oxide for every molecule of magnesium chloride. Therefore, we can conclude that: \[ n = 5 \] ### Step 4: Write the final composition Thus, the complete composition of Sorel cement can be expressed as: \[ \text{MgCl}_2 \cdot 5 \text{MgO} \cdot x \text{H}_2\text{O} \] ### Conclusion The value of \( n \) in the composition of Sorel cement is \( 5 \). ---
To determine the value of \( n \) in the composition of Sorel cement, which is represented as \( \text{MgCl}_2 \cdot n \text{MgO} \cdot x \text{H}_2\text{O} \), we can follow these steps: ### Step 1: Understand the components of Sorel cement Sorel cement is formed by mixing magnesium oxide (\( \text{MgO} \)) with a saturated solution of magnesium chloride (\( \text{MgCl}_2 \)). The resulting product consists of magnesium chloride, magnesium oxide, and water. ### Step 2: Identify the known composition From the information provided, we know that Sorel cement has a specific composition. It is stated that the composition can be represented as \( \text{MgCl}_2 \cdot n \text{MgO} \cdot x \text{H}_2\text{O} \). ...
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