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A 5 per cent aqueous solution by mass of...

A 5 per cent aqueous solution by mass of a non-volatile solute boils at `100.15^(@)C`. Calculate the molar mass of the solute. `K_(b)=0.52 K kg "mol"^(-1)`.

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To calculate the molar mass of the non-volatile solute in a 5% aqueous solution that boils at 100.15°C, we can follow these steps: ### Step 1: Understand the Given Data - The solution is 5% by mass, meaning in 100 g of solution, there are 5 g of solute and 95 g of solvent (water). - The boiling point of the solution is 100.15°C, and the normal boiling point of water is 100°C. - The boiling point elevation constant (K_b) is given as 0.52 K kg mol⁻¹. ### Step 2: Calculate the Boiling Point Elevation (ΔT_b) ...
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