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If a temperature increase from 11.0 C to 22.0 C doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction?
Iron has a density of 7.874. g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm
calculate the moles of CO2 you would theoretically expect from 0.203 grams of an alka-seltzer tablet at 700. torr and 285. K.
A 25-g sample of an alloy at 92 degrees celsius is placed in 50 grams of water at 20 degrees celsius. If the final temperature reached by the alloy sample and water is 27 degrees celsius.
Pressure in a manometer, A manometer consists of a U-shaped tube containing a liquid. One side is connected to the apparatus and the other is open to the atmosphere
Which of the answers below is the correct order for these compounds according to increasing covalent character of their bonds? NCl3, HF, NH3 NCl3, NH3, HF HF, NH3, NCl3 NH3, NCl3, HF
after you preform your experiment you determine that the kf value for naphthalene is 6.91 . you are using 10g of
a sample of nitrogen gas in a 4.7-l container at a temperature of 28degc exerts a pressure of 3.6 atm. calculate the
A solution is prepared by mixing 50.0 mL of 0.20 M Pb(NO3)2 with 50.0 mL of 1.5 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. [Ksp for PbCl2(s) is 1.6 10-5.]
Rank the following atoms (from smallest to largest) based on which would have the largest second ionization energy?
The enthalpy of combustion for C6H12O6(s) is -2830kj/mol. Write a balanced equation for the combustion of C6H12O6 in air. Using the delta Hac values and the given heat of combustion calculate the standard enthalpy of atom combination Delta H ac of ..
briefly explain how you will isolate p-tert-butylphenol after you have extracted it into NaOH solution.
In the television series Star Trek, the transporter beam is a device used to "beam down" people from the Starship Enterprise to another location
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