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The specific heat of toluene, C7H8, is 1.13 J/g K. How many joules of heat are needed to raise the temperature of 50.0 g of toluene from 12.0°C to 30°C?
Polypropylene can be made with varying degrees of crystallinity. If it is processed to have an amorphus structure (where the side-chains are ordered randomly, which statements
calculate the approximate volume of a 0.600 mol sample of gas at 15.0 degrees Celcius and a pressure of 1.10 atm.
Using the Grubbs test, decide wheter the value 216 would be rejected from the set of results 192, 216, 202, 195 and 204. G ( 95% confidence) : 1.463, 1.672, 1.822, 1.938, 2.032
an underground iron pipe in damp soil is to be protected from rusting. which of the following techniques would not
The average molecular weight of the protein by gel permeation is 525000 g mass/g mol. Calculate the mole fraction of each component in solution.
a) If one of the electrodes is Al (suspended in a 1 M Al3+ solution), and the volt meter reads 2.00 volts, what is the identity of the other solid metal electrode
Unfortunately, the airbag explodes and your colleagues laugh at your inability to account for non-ideal or real gas behavior (van der waal). Which correction, attractive forces or molecular volume, is primarily responsible for your air bag blowing..
7. 2.00 moles of an ideal gas at 20.0 degrees C expands isothermally from an initial volume of 20.0 L to a final volume of 40.0 L. Calculate the work, w, for this process (a) for expansion against constant pressure of 105 Pa, and (b) if the expans..
A solution of 97 mL of 0.207 M KOH is mixed with a solution of 185 mL of 0.153 M NiSO4. How much precipitate forms? What is the concertration of each ion upon completion of the reaction. MK+ , MNi 2+, M sulfate ion, M OH-
Calculate the pH of a buffer formed by mixing 60. mL of 0.10 M lactic acid with 88 mL of 0.24 M sodium lactate.
The bond energy of hydrogen is 51 kJ/mol (0.52 eV/molecule). Based on this information, how much energy should be required to break all of the hydrogen bonds in one gram of ice, thus separating the H2O molecules into independent units. Give answer..
Calculate the minimum mass of Pu-238 (in kilograms) that would had to have been loaded on the spacecraft at the time of its launch from earth.
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