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10 L of hard water requires 0.28 g of li...

`10 L` of hard water requires `0.28 g` of lime `(CaO)` for removing hardness. Calculate the temporary hardness in ppm of `CaCO_(3)`.

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To calculate the temporary hardness in ppm of CaCO₃ from the given data, we will follow these steps: ### Step 1: Understand the relationship between CaO and CaCO₃ The reaction between calcium bicarbonate and calcium oxide can be represented as: \[ \text{Ca(HCO}_3\text{)}_2 + \text{CaO} \rightarrow 2 \text{CaCO}_3 + \text{H}_2\text{O} \] From the reaction, we can see that: - 56 g of CaO produces 200 g of CaCO₃. ...
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