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Jennifer Hudspeth verified

Numerade educator

What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5°C? For water Kf = 1.86°C/m and Kb = 0.52°C/m. Multiple Choice -8.94°C 8.94°C -0.99°C 0.99°C

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Jennifer Hudspeth verified

Numerade educator

What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5°C? For water Kf = 1.86°C/m and Kb = 0.52°C/m

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Jennifer Hudspeth verified

Numerade educator

Enter your answer in the provided box. Calculate the molality of a 5.23 M ethanol (C2H5OH) solution whose density is 0.9377 g/mL. m

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5

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Aparna Shakti verified

Numerade educator

-8.94°C 8.94°C -0.99°C 0.99°C -366°C

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Lizabeth Tumminello verified

Numerade educator

What is the magnitude of vapor-pressure lowering? mmHg Temperature (°C) | Water Vapor Pressure (mmHg) 0 | 4.58 5 | 6.54 10 | 9.21 15 | 12.79 20 | 17.54 25 | 23.76 30 | 31.82 35 | 42.18 40 | 55.32 45 | 71.88 50 | 92.51 55 | 118.04 60 | 149.38 65 | 187.54 70 | 233.7 75 | 289.1 80 | 355.1 85 | 433.6 90 | 525.76 95 | 633.90 100 | 760.00

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Aparna Shakti verified

Numerade educator

9.6 × 10–3 M 6.2 × 10–3 M 0.96 M 2.7 × 10–4 M 1.3 × 10–3 M

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Sima Sarker verified

Numerade educator

0.0883 0.0643 0.0969 0.0604 0.357

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Supreeta N verified

Numerade educator

Q2) Oxygen gas makes up 21 % of the atmosphere by volume. What is the solubility of O2(g) in water at 25°C if the atmospheric pressure is 741 mmHg? The Henry's law constant for oxygen gas at 25°C is 1.3 × 10–3 mol/L·atm.

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INSTANT ANSWER

Q5) During osmosis

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