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Compute the change in entropy for 0.5moles of an ideal gas with a temperature independent specific heat capacity of cp, m=2R that undergoes an irreversible change between each pair of states listed below.
a. (10 atm, 0.1L) -->(2.5 atm, 0.4L)
b. (100K, 3 L)-->(150K, 2L)
A solution is prepared by dissolving 0.60g of nicotine in water to make 12mL of solution. The osmotic pressure of the solution is 7.55atm at 25 degrees C
How much slower will a reaction with 2 O3 + 10 NO be than a reaction with 6 O3 and 6 NO
a 0.1276 g sample of an unknown monoprotic acid was dissolved in 25.0 ml of water and titrated with 0.0633 m naoh
Limesonte is another form of CaCO3. Sandstone is primarily silica or sand, SiO2. On the basis of observations made in today's experiment, explain a test that would allow you to distinguish between limestone and sandstone.
isotope has a natural abundance of 57.21% and an atomic mass of 120.90382 amu. Calculate the percent abundance and atomic mass of the 123^Sb isoyope
The value of heat of reaction for the following reaction is -6535 kJ. What will the amount of heat in kJ evolved during the combustion of 13.1 grams of C6H6? The value of heat of reaction for the following reaction is -6535 kJ. What will the a..
If the copper is drawn into wire whose diameter is 8.50 mm, how many feet of copper can be obtained from the ingot? The density of copper is 8.94 rm{g/cm^3}.
An open flask contains .200 mol of air. Atmospheric pressure is 745 mm hg and room temperature is 68 degrees Fahrenheit. How many moles are present in the flask when the pressure is 1.10 ATM and the temperature is 33 degrees Celsius
What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones? i) What is the three dimensional structure of methane? Why?
Activating effects question: Using resonance contributors, explain why the nitrile group is a deactivator and a meta director in electrophilic aromatic substitution. A drawing would be helpful too.
salinity is defined by ocenaographers asfollows mass of dissolved salts mass of solution x 1000 suggest asimple way to
We had to do an experiment that depolymerized PET into terephthalic acid and ethylene glycol using 1-pentanol and KOH. One of the post-lab questions is as follows:
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