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A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K
a 32.85-g sample of a solid is placed in a flask. toluene in which the solid is insoluble is added to the flask so that
Some salts, like silver chloride, AgCl, are insoluble in water. What can we conclude if anything, regarding the energy required for separating and energy released for solvating the ions
Consider the distinction between evolution and natural selection. a) Under what circumstances can evolution occur in the absence of natural selection? Give two different examples, invoking different evolutionary forces in each.
a 7.5- sample of hydrogen gas completely reacts with 60.0 of oxygen gas to form 67.5 of water. is the following data
which would you expect to be more soluable in water mtbe methyl tert-butyl ether or other components of gasoline such
If the volume is increased to 71.2 L at constant temperature, how many collisions will occur per square inch of this larger container
Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) If 1.26 L of H2 gas are formed at STP, how many g of HCl reacted?
Diet cola has a pH of 3.0 while milk has a pH of 7.0. Explain how many times greater is the H+ concentration in the diet cola than the milk
a water solution containing 2.00 g of an unknown molecular substance dissolved in 10.00 g of water has a freezing point
How many moles of MgCl2 are needed to prepare 25 mL of a 1.49 M MgCl2 (aq) solution in a volumetric flask
How do I know which specific orbital loses an electron in the third ionization step for the Be atom.
What is the estimated temperature of the object using the above approximate prescription? what is the percent error?
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