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Calculate the percentage mass of water i...

Calculate the percentage mass of water in crystals of washing soda.

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To calculate the percentage mass of water in crystals of washing soda (sodium carbonate decahydrate), we follow these steps: ### Step 1: Write the formula for washing soda The chemical formula for washing soda is \( \text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O} \). ### Step 2: Calculate the molar mass of washing soda To find the molar mass of washing soda, we need to calculate the contributions from each element in the formula. ...
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Assertion (A) Permanent hardness of water is removed by treatment with washing soda. Reson (R) Washing soda reacts with soluble magnesium and calcium sulphate to from insolube carbonates.