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Calculate the vapour pressure lowering c...

Calculate the vapour pressure lowering caused by the addition of `68.4 g` of sucrose (molecular mass = 342) to `500 g` of water if the vapour pressure of pure water at `25^(@)C` is `20.0 mm Hg`.

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To calculate the vapor pressure lowering caused by the addition of 68.4 g of sucrose to 500 g of water, we will follow these steps: ### Step 1: Calculate the number of moles of sucrose. The number of moles of sucrose can be calculated using the formula: \[ \text{Moles of solute (sucrose)} = \frac{\text{Mass of sucrose}}{\text{Molar mass of sucrose}} \] Given: ...
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