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A feed stream containing a mixture of 40% n-butane, 30% n-pentane and 30% n-hexane flows into a flash unit. The flash temperature is 290 K and the flash pressure is 0.6 bar. What is the ratio of the exit vapor feed flow to the feed flow rate? What are the compositions of the exit streams?
How many kilocal are required to increase the temperature of 15.6 g of iron from 122 °C to 355°C? The specific heat of iron is 0.450 J/g °C.
The molar solubility of MnCO3 is 4.2 x 10-6 M. What is Ksp for this compound?
How many milliliters of a 0.20 M glucose C6H12O6 solution are needed to provide a total of 25.0 g of glucose?
an automobile gasoline tank holds 21 kg of gasoline. When gasoline burs, 81 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
The vapor pressure of water at 29 ^circ rm C is 30.0 rm torr. What is the mass percentage of aluminum in this alloy?
What is the pH at the equivalence point when 100.00 mL of a 0.200 M solution of acetic acid (CH3COOH) is titrated with 0.10 M NaOH to its end point?
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
A sample of oxygen occupies 10.0 L at 4.00 atm pressure. At what temperature will the pressure equal 3.00 atm if the final volume is 8.00 L.
Suppose that 155g of ethanol at 21 degrees Celcius is mixed with 240g of ethanol at 88 degrees Celcius at constant atmospheric pressure in a thermally insulated vessel. What is the change in S of the system for the process? The specific heat capac..
Identify what complementary functional group would need to be present in the neuraminidase active site for (a) hydrogen bonding and (b) ioic interactions to oseltamivir to be observed?
Consider the four equations of states(EOS) below describing PVT behavior of gases. Let a and b be constants. EOSI : PV = RT EOSII: (P-a)V = RT EOSIII: P(V-b) = RT EOSIV: P = RT/(V-b) - a/V (a) Prove for EOSI that both U and H are functions of T on..
Which of the following proves the law of definite proportions?
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