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Problem- Benzene, C6H6, is an organic liquid that freezes at 5.5 C. How much energy as heat is evolved when 15.5 g of benzene freezes at 5.5 C? The enthalpy of fusion is 9.95 kJ/mol. 1.97 Joules 1,977 Joules 54 kJ 230 kJ
I am in urgent need of solution of above problem with complete explanation
The relationship between Kp and Kc for gaseous reactions depends on the change in the total moles of gas between reactants and products. For each of the equations given at the right, select the correct relationship between Kp and Kc from the list ..
calcium crystallizes with a body-centered cubic structure a)how many Ca atoms are contained in each unit cell? b)how many nearest neighbors does each Ca atom posses
working solution so you add five spatula tips full of salt to a large test tube and then make your working solution with only 5mL of deionized water.
what is heat of vaporization of a liquid that has a vapor pressure of 606 torr at 84 degrees celsius and a boiling point of 96.3 degrees celsius at 1 atm?
Draw the structures of each of the following compounds. Determine the number of chirality centers, indicating them in each structures. Also calculate the number of possible stereoisomers for the compound.
Problem- Pure benzophenone freezes at 48.1degee c. A solution of 1.25g of biphenyl c12h10 molar mass=154.2g/mol) plus 25.38g of benzophenone froze at 16.8degree c. Calculate de Kf of benzophenone.
Superman flies past you at a speed of 1000 miles/hr. At the moment he passes you, you throw a rock at him at a velocity of 750 meters per second
What is the concentration of the acid and base form of acetic acid when you start the experiment? c) In the process of the enzyme catalyzed reaction, 5mM H+ is produced. What is the pH of the solution after the reaction is complete?
Explain why the radii of atoms do not simply increase uniformly with increasing atomic number.
What is the approximate Na+ ion concentration in a 0.75 M Na2CO3 solution? a. 0.375 M b. 0.75 M
Describe procedures for preparing each of the following compounds, using ethanol as the source for all of their carbon atoms (you can use any reagent you like, but every carbon in every product below must have originated in ethanol; once you prepa..
How much heat (in kJ) is evolved in converting 1.00 mol of steam at 130.0 degrees C to ice at -55.0 degrees C? The heat capacity of steam is 2.01J/g and of ice is 2.09j/g.
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