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Problem #1: What is the vapor pressure of an aqueous solution that has a solute mole fraction of 0.1000? The vapor pressure of water is 25.756 mmHg at 25 °C. Solution: χ solv = 1.0000 − 0.1000 = 0.9000 <--- solv means solvent. Use Raoult's Law: P solution = (χ solv) (P solv o) x = (0.9000) (25.756) x = 23.18 mmHg (to four sig figs)
3 paź 2024 · This calculator helps determine the vapor pressure of solutions based on solvent properties, making it useful in both academic and industrial applications.
12 lip 2023 · Calculate the vapor pressure of an aqueous solution containing 30.2% ethylene glycol by mass, a concentration commonly used in climates that do not get extremely cold in winter. Given: identity of solute, percentage by mass, and vapor pressure of pure solvent. Asked for: vapor pressure of solution. Strategy:
1.) Calculate the vapor pressure in torr of a solution that is made by dissolving 59.51 grams of glucose (C6H12O6) in 112.2 mL of water at 26.7 oC. The vapor pressure of pure water at 26.7 oC is 26.271 torr and the density of water at that temperature is 0.99669 g/mL. First we need to find the mole fraction of the solvent (water).
The vapor pressure calculator helps you learn about phase transition, latent heat, the Clausius-Clapeyron equation and other parts of thermodynamics and chemistry.
Vapor Pressure Calculator. Blue fields allow input. The form below contains input fields, and read-only fields for output. Press <RETURN> or <TAB> to calculate. Accuracy: For many substances, vapor pressures are only poorly known; expect errors up to a few 10% of the vapor pressure value.
Work in pairs. Wear safety goggles and lab apron at all times in lab. Calculate air and vapor pressure as you collect each pressure, temperature data pair (see Calculations #1) – many students get erroneous results for this experiment, so calculating as you go will enable you to repeat measurements.
