temperature 0 5. °C 15. °C 25. °C vapor pressure 0.167 atm 0.195 atm 0.226 atm Use this information to calculate the enthalpy of vaporization of X. Round your answer to 2 significant digits. Be sure your answer contains a corn H

How to calculate the boiling point of methylene chloride at 670mm Hg? (need some hint)

kJ The enthalpy of vaporization of Substance X is 10.0 and its normal boiling point is 110. °C. Calculate the vapor pressure of X at 33. °C. mol Round your answer to 2 significant digits. atm х10

A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) 160. 140. 120. 100. 80. 60. 0. 10. What is the boiling point of X ? Use this graph to answer the following questions: heat added (kJ/mol) 20. What phase (physical state) of X would you expect to find in the flask after 12 kJ/mol of heat has been added? 30. Пос (check all that apply) solid O liquid gas 40.

Substance X is known to exist at 1atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X have been determined (picture). You may also assume X behaves as an ideal gas in the vapor phase. Suppose a small sample of X at -20°C is put into an evacuated flask and heated at a constant rate until 10 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment.

The vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure -98. °C 0.0231 atm -85. °C 0.0964 atm -72. °C 0.334atm Use this information to calculate the enthalpy of vaporization of X. Round your answer to 2 significant digits. Be sure your answer contains a correct unit symbol. x10

Q1.)Using the data provided in Table 3 in the handout (also provided below), calculate the vapor pressure of water at 21.0 °C.?? Table 3:  Vapor pressure of water at various temperatures T (˚C) P (mmHg) T (˚C) P (mmHg) T (˚C) P (mmHg) 0 4.58 16 13.63 26 25.21 5 6.54 18 15.48 28 28.35 10 9.21 20 17.54 30 31.82 12 10.52 22 19.83 40 55.3 14 11.99 24 22.38 50 92.5 PART B)  In the experiment, you wrap a piece of copper wire around your magnesium strip to suspend the magnesium inside the eudiometer. Why is copper wire a good choice for this task? MULTIPLE CHOICE :  A.It conducts electricity very well B. It reacts strongly with the acid C. It does not react with the acid D. It is much heavier than Mg

Try Again Your answer is incorrect. The enthalpy of vaporization of Substance X is 23.0 Round your answer to 2 significant digits. 0.32 atm x10 X kJ and its normal boiling point is 10. °C. Calculate the vapor pressure of Xat - 18. °C. mol S

A sample of C3H4Br2 has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for this compound is 35.4 kJ/mol. What would be the boiling temperature in °C of C3H4Br2 at a pressure of 540.0 mm Hg? Report your answer using three significant figures.

Use the observation in the first column to answer the question in the second column. observation The enthalpy of vaporization of Substance E is bigger than that of Substance F. At 36 °C, Substance C has a vapor pressure of 111. torr and Substance D has a vapor pressure of 91. torr. At 1 atm pressure, Substance A boils at 36. °C and Substance B boils at 52. °C. question Which has the higher boiling point? Substance E Substance F Neither, E and F have the same boiling point. It's impossible to know without more information. Which has a higher boiling point? Substance C Substance D Neither, C and D have the same boiling point. It's impossible to know without more information. Which has a higher enthalpy of vaporization? Substance A Substance B Neither, A and B have the same enthalpy of vaporization. It's impossible to know without more information.