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Problem- The vapor pressure of toluene is 8 kPa at 40.3 C and 2.67 kPa at 18.4 C. Calculate (a) the heat of vaporization and (b) the vapor pressure at 25 C.
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When the restraints are cut how high does the assembly go in an isothermal atmosphere at -10 C? The balloon fabric can inflate to a maximum radius of five meters.
The nitrix oxide molecule, NO,readily loses one electron to form the NO+ ion. Why is this consistent with the electronic structure of NO. Predict the order of the N-O bond strengths in NO, NO+ and NO- and describe the magnetic properties of each.
how much heat is released when 105 grams of steam at 100.0 degrees celsius is cooled to ice at -15.0 degrees celsius?
the total volume of the gas bags of the german dirigible hindenberg, was 2.0 * 10^5m^3. how many grams of H2 would be required to fill them at 20 celcius and 1.00 atm pressure? hint convert m^3>cm^3>mL>L.
is it possible to determine the amount of impurity formed in aspirin with excess sodium salt. aspirin had a melting point range of 113-135 degrees celsius. that is all the information given. any other info can be used.
Are the values of Km and Vmax obtained from LinearWear Burk Plot larger or smaller than those obtained from Michaelis Menten Plot. Explain why
Describe why this is based on the wavelength range that is transmitted. What color would you see if you mixed the two solutions with ?max = 520 and ?max = 610?
Using the information (A 7.0 x 10 ^-3 aqueous solution of Ca(OH)2 at 25.0 degrees C has a PH of) At equilibrium, what is the molarity of H3O+ in a 0.010 M solution of HClO
what is the ph of a solution prepared by mixing 25.00 ml of a 0.10 m solution of the weak acid ch3co2h with 25.00 ml of
For 2 SO2(g) + O2(g) 2 SO3(g), Kp = 3.0 104 at 700 K. In a 2.00-L vessel the equilibrium mixture contains 1.72 g of SO3 and 0.171 g of O2. How many grams of SO2 are in the vessel
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 degrees Celsius. A 250 mL flask contains 0.75g of butane at -22 degrees Celsius. How much butane is present as a liquid
Synthetic polypeptides can assume an helical structure under appropriate conditions. Indicate whether polylysine and polyglutamate form an helix
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