2 At 25°C, it was found 7.83 g of water is d that to prepare a saturated solutio

Question

2 At 25°C, it was found 7.83 g of water is d that to prepare a saturated solution of KNO, a sa required to dissolve a 3.00 g sample of KNO a. What is the molal solubility of KNO, in water at 25°C? Show your work below. :3.76 .83 T01 10383.149 b. What is the molar solubility of KNO, in water at 20°C? Assume the density is 1.1623 8/ml.2 /m molori Tol lo32 ye moles c. Ifthe described solution is submerged in a 10°C ice bath, would you expect to see any observable changes to the solution? Explain, Solubsh thi kmperat so solubiliy deea

Explanation / Answer

molality or molal solubility =moles of solute/weight of solvent in kg

Molecular mass of KNO3=101.1032g/mol; n=mass of solute /Molecular mass= 3/101.1032=0.029moles

Molality=0.029/0.00783= 3.7

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