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A balloon is floating around outside your window. The temperature outside is 15 degrees celsius, and the air pressure is 0.700 atm. Your neighbor, who released the balloon, tells you that he filled it with 4.20 moles of gas. What is the volume of gas inside this balloon
Which of the following statements concerning fatty acids is incorrect. Fatty acids are rarely found free in nature
Give examples of a neutral salt, acidic salt and basic salt. Explain your choice.
A reaction with the activation energy Ea= 219.00 kJ/mol, has a rate constant k = 2.400 x 101 at 565.00 Kelvin. Determine the rate constant when the temperature is changed to 861.00 Kelvin. R = 8.314 J K-1mol-1
2ZnS + 3O2 = 2ZnO + 2SO2 how many moles of Zno are produces when 32 gms of oxygen is allowed to react with an excess of ZnS?
The pre-exponential factor for the gas-phase decomposition of ozone (unimolecular reaction) is 2.3x1013 L mol-1 s-1, and the experimental activation energy is 30.0 kJ mol-1. What is (a) the entropy, (b) the enthalpy and (c) the Gibbs free energy o..
What is the heat capacity of a bomb calorimeter if the combustion of 2.757 mmol of salicylic acid (C7H6O3(s), Hcomb = -3022 kJ/mol) increases the temperature of the calorimeter by 2.612°C
A vessel which is 5 m^3 is filled with propylene. The pressure inside the vessel is 470 psi, and the temperature of the vessel is 25 C. A) How many kg of propylene are in the vessel?
what is the temp of the final solution after thermal equilibrium is established? The heat of neutralization -56kj/mol. Assume there is not heat lost to the surroundings. Also assume the specific heat of the solution is 1.0 Cal/g*c and the density ..
Which of the acids in question #3 would be the best choice to create a buffer with pH = 7.35? If you had 250.0 mL of a 0.20 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base would be required to make the buff..
For each titration I need to calculate the moles of base needed to neutralize the acid sample. How do I go about doing this?
An auto bumper is coated with a layer of chromium, 0.017 cm thick. The bumper has a surface area of 3.43 x 104 cm2. The density of chromium metal is 7.19 g/cm3. How many atoms of chromium are used in the coating?
Which radio station broadcasts at a longer wavelength: 93.9 FM or 104.3 FM? To support your answer, list the actual wavelength values and units for each of these radio stations.
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