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(a) What sign for ?S do you expect when the volume of 0.200 mol of an ideal gas at 27 °C is increased isothermally from an initial volume of 10.0 L?
(b) If the final volume is 18.5 L, calculate the entropy change for the process.
(c) Do you need to specify the temperature to calculate the entropy change? Explain.
calculate the ph of buffer solution made from .20 M HC2H3O2 and .050 M C2H3O2 that has an acid dissociation constant for HC2H3O2 of 1.8*10-5.
Neglect the absorption of other waste gas components into the water, and the evaporation of water into the waste gas stream. What is the mole fraction of NH3 in the scrubbed waste gas stream
When is the ozone concentration normal and when is it at its lowest? Explain why and describe any trends observed for the lowest annual concentrations observed.
Problem- What is the concentration of nitrate ion in a solution made by mixing 100 mL of a 0.200 M HNO3 solution with 200 mL of a 0.100 M solution of Mg(NO3)2? (A) 0.133 M (B) 0.150 M (C) 0.167 M (D) 0.200 M
While comparing cis-dichloroethene as well as trans-dichloroethene the cis has a dipole movement of 2.685 debye while the trans has 0 debye as I guess it should be non polar. Explain Why are the dipole moments as such.
you dissolve 15.71 g of nh4no3 in 150 ml of solution callthis solution a. you take 20 ml of solution a and add water
a 40 foot aluminum street lighting support is sized and welded intoposition between two very large bridge beams on a
A solution is prepared by dissolving 25.8 grams of magnesium chloride (MgCl2) in 250.0 mL water. Calculate the molality of the chloride ion in the solution.
If 25.0 mL of NO2 gas is completely converted to N2O4 gas under the same conditions, what volume will the N2O4 occupy?
a 720-mL sample of water was cooled from 60 degrees celsius to 10 degrees celsius. How much heat was lost?
Define the combustion of 0.14 g methyl alcohol, CH3Oh, at constant pressure elevate the temperature of a calorimeter by 0.222 degrees Celsius. The calorimeter constant is 1.5 KJ/deg Celsius. Explain what is the q and the enthalpy of combustion of ..
a 588 g chunk of iron is heated to 97.5c. then it is immersed in 247 ml of water originally at 20.7c.when thermal
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