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The enthalpy change for the following reaction is -108 kJ
CO(g) + Cl2(g) COCl2(g) Estimate the C=O bond energy in COCl2(g) , using tabulated bond energies (linked above) for the remaining bonds.
The enthalpy change for the following reaction is -185 kJ.
H2(g) + Cl2(g)2HCl(g) Estimate the Cl-Cl bond energy in Cl2(g), using tabulated bond energies (linked above) for the remaining bonds.
A doctor prescribes 3 g of a drug, daily, for a patient. The pharmacist has only 750-mg tablets available. How many tablets will the patient take daily
What is delta H rxn/mol Mg for the following reaction. Mg + 2HCl -> MgCl2 + H2 if 0.158 g Mg reacts in 100.0 mL of solution and changes the temperature from 25.6 °C to 32.8 °C
Helium has a lower boiling point than nitrogen. What do you conclude about the polarizability of helium in comparison to that of nitrogen
describe an experiment using only hot and cold water that would allow you to verify that the heat capacity of your coffee-cup calorimeter
A voltaic cell is based on the reaction Sn(s)+ I2 (s) --> Sn^2+ (aq)+ 2I^- (aq). Under standard conditions, what is the maximum electrical work, in joules, that the cell can accomplish if 70.0 g of Sn is consumed?
Calculate the entropy change for the system and the surroundings. The heat of fusion of water is 6.02 kJ/mol; Cp (water)=4.184 J/K/g, Cp(ice)=2.094 J/K/g.
A food chemist determines that an increase in temperature from 50 to 60 degrees Celcius increases the initial rate of this reaction by a factor of 2.12 (all other initial conditions were kept constant). What is the activation barrier for this este..
Question- At what temperature would a molecule of 4He have a root mean square speed equal to the speed of sound, 331.3 m/s, at 1atm
For 2.25 moles of an ideal gas, Pext=P=200x10^3 Pa. The temperature is changed from 122 C to 28.5C and Cv=3R/2. Calculate the q, w, delta U and delta H for an isochloric process.
One series of lines called the pfund series, occurs in the infrared region, and results when an electron relaxes from higher energy levels to terminate in the level for which n=5. calculate the wavelength and frequency of the lowest energy line of..
Formula for numerous members of the lillianite group of sulfosalts is given below. Design the composition of each mineral in atomic on a Sb-Pb-Ag triangular diagram where Sb = top, Ag = left and Pb = right; ignore S
The value of the change of G for the conversion of glucose-6-phosphate to fructose-6-phosphate is +1.67 kJ/mol. If the concentration of glucose-6-phosphate is 2.65mM, what is the concentration of fructose-6-phosphate
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