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A container is filled with an ideal gas to a pressure of 40.0 atm at 0 degrees C. a. What will be the pressure in the container if it is heated to 45 degrees C? b. At what temperature would the pressure be 1.50 x 10-2 atm? c. At what temperature would the pressure be at 25.0 atm?
What are the units for k in the rate expression (time unit is seconds) for a reaction with the following rate law? Rate = k[X]1[Y]0[Z]0
A piece of a newly synthesized material of mass 25.0 g at 80.0C is placed in a calorimeter containing 100.0 g of water at 20.0C. If the final temperature of the system is 24.0C, what is the specific heat capacity of this material?
What mass of ethanol, CH3CH2OH, should be dissolved in 450. g of water to obtain a freezing point of 4.5°C?
Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.
When ethylamine, a weak base (Kb=4.3E-4), reacts with the formic acid, a weak acid (Ka=1.8E-4), the following reaction takes place: Calculate K for this reaction.
If 85.0 J of heat is added to 50.0 g of nickle at 25.0 C , what is the final temprature of the nickle?
20.00 ml of .150 M HC2H2O2 solution is titrated with .150 M NaOH. What is the pH at the equivalence point? Ka of HC2H2O2 = 1.8*10^-5.
the electric potential energy associated with an electron and a proton is -4.35*10^-18 j. what is the distance between these two charges?
what will happen if a small amount of HCl is added to a 0.1M solution of HF? a. the percent ionization of HF will decrease. b. Ka for HF will increase
Calculate the energy that must be transferred as heat to a van der Waals gas that expands reversibly and isothermally from Vi to Vf.
sulfuric acid acts as a catalyst for making esters. Write an equation showing the production of Isoamyl alcohol
Enough of a monoprotic acid is dissolved in water to produce a 0.0177 M solution. The pH of the resulting solution is 2.65. Calculate the Ka for the acid.
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