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Question- Automobiles and trucks pollute the air with NO. At 2000 degrees C, Kc for the reaction is 4.10 x 10^ -4, and delta H = 180.6 kj. What is the value of Kc at 67 degrees C?
It is not a question in the book, so I just need the full solution of deriving
Use the following data to estimate the normal boiling point and the molar enthalpy of vaporization of lead
ethyl alcohol c2h5oh is a fermentation produce of sugars in the presence of enzymes. how much glucose c6h12o6 would you
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid
In a perfect system when warm water is supplemented to cold water, all of the heat energy free would be absorbed by the cold water. Explain how does the system that we are using differ from this perfect system
An aqueous solution was prepared to have a density of 1.54 g/mL and a molarity of 19.4 mol/L at 20oC. The molar mass, Mm, of the solute is 40.00 g/mol. What is the mass of the solvent?
A solid laboratory sample contains two substances, lead(II) carbonate and potassium carbonate. A 5.000 g sample of this unknown was treated with aqueous nitric acid to dissolve it, then, after further treatment to adjust the acidity
which non-metal anion bearing a charge of -1 is represented by the electronic configuration 1s22s22p6? write down your
Determine if a precipitate forms when the following solutions are mixed. Write the overall equation, the total ionic equation, and the net ionic equation. PbNO3(aq) + 2KI (aq) ? overall equation: total ionic: Net ionic equation
acidifying with dilute H2SO4 and titrating with a 0.01804 M KMnO4 solution. 33.15 mL of the permangate solution was needed to reach the end point of the titration. What is the actual molar concentration of the H2O2 solution?
What is the [H3O+] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? Ka=1.7x10^-4
Another bottle holds 120 tablets, each containing 180 of aspirin, and sells for $3.95. Calculate the value in milligrams of aspirin per dollar.
How much work (in {\rm J}) is required to expand the volume of a pump from 0.0 {\rm L} to 2.6 L against an external pressure of 1.2 atm
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