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Determine the density of Pb if the length of one of the sides of the cubic unit cell, s, is 4.9505 angrstroms and Pb packs into a FCC unit cell. units in g/cm^3
Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?
The initial temperature of the calorimeter is 23.0. If 6.30 of is added to the calorimeter, what will be the final temperature of the solution in the calorimeter?
The Ksp of AgCrO4 is 1.9 x 10^-12. Calculate the molar solubility (in mol/L) of Ag2CrO4 in 0.1 M AgNO3.
What is the partial pressure of each substance if the total pressure of the mixture is 2.35 atm?
consider a gas at 1.00 atm in a 5.00 l container at 20 degrees celsius. what pressure does the gas exert when
Why Do I Require More CaCO3 to Raise pH than Predicted? If you can remember back to a discussion and inquiry we exchanged last week concerning the use of sodium carbonate vs. calcium carbonate
What is the change in internal energy (in J) of a system that releases 840 J of thermal energy to its surroundings and has 119 cal of work done on it? can you show work please the anser is -342
A solution of 75.0 g of benzene (C6H6) and 75.0 g of toluene (C7H8) has a total vapor pressure of 80.9 mmHg at 303 K. Another solution of 100.0 g benzene and 50.0 g toluene has a total vapor pressure of 93.9 mmHg at this temperature.c
For the reaction 3C2H2(g)---> C6H6(l) at 25 C the standard enthalpy change is -631 kj and the standard entropy change is -430 J/K. Calculate the standard free energy change at 25 C
The Iron(3) ion have five unpaired electrons. In octahedral coordination complexes, it may have either one or five unpaired electrons. Using valence bond theory: 1. Draw and name the hybrid orbital schemes for these two situations
Calculate the required quantity of each reagent and the volume of water that must be added for dilution. a. Chlorine water
Suppose that a sample of gas occupies 162 mL of volume at 25C and a pressure of 291 torr. What would be the volume if the pressure were changed to 503 torr at 25C? Answer in units of mL.
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