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Calculations 1 Find the molality of the solution (from Part C): mass solute (NaCl ) = mass solvent (H₂O) = 2 3 molar mass solute (NaCl) = molsolute = mass molar mass msolution = molsolute kgsolvent Calculate van't Hoff factor (i): 8 AT = ik, msolution g kg Calculate the change in temperature (FP Depression): AT = FP solvent - FP solution g/mol FP Psolvent from Data Table B FP = Psolution from Data Table C K₁= 1.80°Ckg/mol AT from step 2 msolution from step 1

Calculations 1 Find the molality of the solution (from Part C): mass solute (NaCl ) = mass solvent (H₂O) = 2 3 molar mass solute (NaCl) = molsolute = mass molar mass msolution = molsolute kgsolvent Calculate van't Hoff factor (i): 8 AT = ik, msolution g kg Calculate the change in temperature (FP Depression): AT = FP solvent - FP solution g/mol FP Psolvent from Data Table B FP = Psolution from Data Table C K₁= 1.80°Ckg/mol AT from step 2 msolution from step 1

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Using both images attached please do all the calculations in the image attached
Calculations 1 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 mass solvent (H₂O) = molsolute = mass Msolution Find the molality of the solution (from Part C): mass solute (NaCl) = molar mass solute (NaCl): molar mass 2 3 4 5 = molsolute kgsolvent 6 7 8 9 10 11 12 13 14 15 AT IK Msolution = -9.6°C -10°C Calculate van't Hoff factor (i): -11°C - 11.5°C g g kg Calculate the change in temperature (FP Depression): AT= FP solvent-FP solution g/mol FP solvent from Data Table B FP = from Data Table C solution K₁ = 1.80°Ckg/mol AT = from step 2 msolution = from step 1
Transcribed Image Text:Calculations 1 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 mass solvent (H₂O) = molsolute = mass Msolution Find the molality of the solution (from Part C): mass solute (NaCl) = molar mass solute (NaCl): molar mass 2 3 4 5 = molsolute kgsolvent 6 7 8 9 10 11 12 13 14 15 AT IK Msolution = -9.6°C -10°C Calculate van't Hoff factor (i): -11°C - 11.5°C g g kg Calculate the change in temperature (FP Depression): AT= FP solvent-FP solution g/mol FP solvent from Data Table B FP = from Data Table C solution K₁ = 1.80°Ckg/mol AT = from step 2 msolution = from step 1
Exp3: Calculation of van't Hoff factor(i) using Freezing Point Depression Data Table A (The temperature should reach atleast -10°C) Time (min) 0 5 10 15 20 # 1 2 3 4 5 Data Table B (Continue recording data till the temperature is constant for atleast 2 minutes at 0°C) FP solvent (It should be 0°C) FP. mass of dl water # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 = Time (min) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 Data Table C (Continue recording data till the temperature is constant ~ -14°C) (It should be 14°C) solution Temperature (°C) -5°C -10°C 10g U Temperature (°C) 3°C 1°C 0°℃ mass of water mass of crystalline NaCl 1.002g # Time (min) 0 1 Temperature (°C) 5°℃ 3°C
Transcribed Image Text:Exp3: Calculation of van't Hoff factor(i) using Freezing Point Depression Data Table A (The temperature should reach atleast -10°C) Time (min) 0 5 10 15 20 # 1 2 3 4 5 Data Table B (Continue recording data till the temperature is constant for atleast 2 minutes at 0°C) FP solvent (It should be 0°C) FP. mass of dl water # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 = Time (min) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 Data Table C (Continue recording data till the temperature is constant ~ -14°C) (It should be 14°C) solution Temperature (°C) -5°C -10°C 10g U Temperature (°C) 3°C 1°C 0°℃ mass of water mass of crystalline NaCl 1.002g # Time (min) 0 1 Temperature (°C) 5°℃ 3°C
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