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Sketch the phase diagram of a pure substnace from the follwoing data. (A log P scale may help). There are two solid forms X and Y, which are both denser than the liquid, and Y is denser than X. The X form melts at 281 K under its own vapor pressure of 15 kPa. The normal boiling point of the liquid is 425 K. Liquid, X, and Y are all in equilibrium at 342 K and 1800 bar. Tc = 571K, Pc= 46 bar
Would you expect to find more dissolved oxygen in ocean water around the Northern latitudes or in ocean water close to the equator?
Assume that only a single stream exits the fuel cell. What is the flow rate of each of the species leaving the fuel cell? Not that the flow rates given to correspond a fuel cell rate at approximately 50kW using 2004 technology.
How many joules of heat are required to heat 167 g of aluminum from 34.0 oC to 66.5oC?
A solid that weighs 0.008kg . Put the solid into a gradulated cyliner filled with water and the volume increases by 10cm 3 what is the denity?
Based on the molecular formula, determine whether each of the following is an alkane, alkene, or alkyne. (Assume that the hydrocarbons are noncyclical and there is no more than one multiple bond.)
The answer to Kinetics, The symmetry factor Beta was determined to be 0.4 for an activation controlled Ag deposition process. At overpotential n = -0.400 V the current density was found to be j = -5.125 A/dm^2.
The dipole moment (mu) of HBr (a polar covalent molecule) is 0.82 D (debye), and its percent ionic character is 12.1%. Estimate the bond length of the HBr bond in picometers.
A diprotic acid, H2A, has the following ionization constants: Ka1 = 1.1 multiplied by 10-3 and Ka2 = 2.5 multiplied by 10-6. In order to make up a buffer solution of pH 5.80, which combination would you choose, NaHA/H2A or Na2A/NaHA? What is the p..
Calculate the hydronium ion concentration and the pH after the addition of .25mL of .10 M HCl to each one. What accounts for the difference in hydronium ion concentrations? Explain this based on equilibrium concepts.
a second reaction has a standard Gibbs free energy of -55 kJ/mol. What is the ratio of their equilibrium constants at 300 K?
Calculate the number of moles of Ascobic acid in the 50.00 ml Sample. Titration Volumes of KIO3 Initial Buret reading/ml trial 1=12.54 trial 2=8.78 Final buret reading/ trial 1=38.74 trial 2=34.93 Volume of KIO used/ml trial 1=? trial 2=?
Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?
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