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Question: The enthalpy of vaporization of carbon tetrachloride is +30.0 kJ/mol at its normal boiling temperature of 80.7 K. Calculate the vapor pressure at 100 K.
20 sample of dry ice is added to a 765 flask containing nitrogen gas at a temperature of 25.0 and a pressure of 715 .
Suppose that 25 g of each of the following substances is initially at 28.0degrees C. What is the final temperature of each of the following substances upon absorbing 2.35 kJ of heat.
A sample of an ideal gas has a volume of 2.21 L at 287 K and 1.11 atm. Calculate the pressure when the volume is 1.03 L and the temperature is 299 K.
Calculate delta G of the reaction for the following reaction: CaCO3(s) -> CaO(s) +CO2(g). Using delta G rxn =-734.4 kJ and -1206.6 kJ
Calculate the number of atoms in 0.406 g of potassium (K). Enter your answer in scientific notation.
calculate the mass in grams for a gold sample that absorbs 210 j to change its temperature from 13.0 c to 53.0
A solution contains three anions at the folowing concentrations: .20M CrO4^2-, .10M CO3^2-, and .010MCl^-. if a dilut solution of AgNo3 is added to the solution
Using graphical techniques, calculate the equilibrium pH and the equilibrium concentrations of all the dissolved species for a 10^-3 M (NH4)2CO3 solution.
Dioxane has a boiling point of 101 degrees celsius. could you seperate dioxane from methylcyclohexane by distillation? explain why or why not, based on the liquid and vapor compositions during the distillation. How might these liquids be seperated
Compound X, C14H12Br2, is optically inactive. On treatment with strong base, X gives hydrocarbon Y, C14H10. Compound Y absorbs 2 equivalents of hydrogen when reduced over a palladium catalyst to give Z (C14H14)
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively
The concentration of Pb2+ in a commercially available standard solution is 1.000 mg/mL. What volume of this solution should be diluted to 6.0 x 10^2 mL to produce a solution in which the concentation of Pb2+ is 0.0505 mg/L
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