Reference no: EM13220186
A) determine the vapor pressure (in torr) of a substance at 36degrees C, whose normal boiling point is 84 degrees C and has a ΔHvap of 22.1 kJ/mol:
1. 147 torr, 2. 98 torr, 3. 239 torr, 4. 31.8 torr, 5. 41.8 torr
B) how much energy is required to heat 87.1 g acetone (molar mass=58.05 g/mol) from a solid at -154.0degress C to a liquid at -42.0 degrees C: other data ΔHfus=7.27 kJ/mol, Cliq= 2.16 J/g degrees C, Cgas= 1.29 J/g degrees C, Csol=1.65 J/gdegrees C, Tmelting=-95.0degrees C
1. 8.48kJ, 2. 29.4 kJ, 3. 32.2 kJ, 4. 18.5 kJ, 5. 9.97 kJ
C) Determine ΔHvap for a compound that has a measured vapor pressure 24.3 torr at 273 K and 135 torr at 325 K:
1. 34 kJ/mol, 2. 13 kJ/mol, 3. 24 kJ/mol, 4. 79 kJ/mol, 5. 41 kJ/mol
|
Explain is the franc selling at a premium or discount
: The 1-year interest rate in the U.S. is 10%; in Switzerland it is 12%. The current spot rate (dollars per franc) is $0.40. a. What do you expect the 1-year forward rate to be b. Is the franc selling at a premium or discount
|
|
Define the solutions are a mixture of salts
: a solution of 4.00 g of sodium carbonate is mixed with one containing 4.00 g of silver nitrate. after the reaction is complete, the solutions are a mixture of salts.
|
|
Determine what total profit would the monopolist make
: A market contains two types of consumers, green and yellow. Each green consumer has a demand of P = 20-Q. Each yellow consumer has a demand of P=16-Q. These are individual demand curves. The monopolist who sells to these individuals has a MC
|
|
What is the marginal cost of an increase in w1
: Assume a firm wants to minimize its cost of producing y amount using x1 and x2 as inputs, which means it wants to minimize w1x1 + w2x2 subject to x1^(1/2)x2^(1/2)= y: (a) Using Lagrange multiplier method, find optimal x1 and x2 as functions of w1,w2 ..
|
|
Explain compound that has a measured vapor pressure
: Determine ΔHvap for a compound that has a measured vapor pressure 24.3 torr at 273 K and 135 torr at 325 K: 1. 34 kJ/mol, 2. 13 kJ/mol, 3. 24 kJ/mol, 4. 79 kJ/mol, 5. 41 kJ/mol
|
|
How much labor should bad breath hire n what wage should pay
: Bad Breath, Inc. Sells its output at $1 per unit into competitive markets. Bad Breath's factory is the only employer of labor in Gilroy, California. It faces a supply from competitive workers of QL = w where QL is the number of workers hired per year
|
|
Define what is the chloride concentration ppt
: If the standard deviation of your pipet is 0.018 mL, what is the chloride concentration ppt (W/V) of you sample?
|
|
Evaluate the work done in joules by the reaction
: Calculate the work done in joules by the reaction when 0.21 g of Na reacts with water to form hydrogen gas at 1°C and 3.0 atm in an open container.
|
|
Explain the molar ratio of nitrogen to methane
: The molar ratio of nitrogen to methane is known to be 0.26. Find the mole fraction and mass fraction of each component, and the average molecular weight of the mixture.
|