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In oxygen cylinder there is helium also filled with oxygen. Why not nitrogen is filled in place of helium?
The random walk model used to describe gas diffusion can be treated as a binomial distribution similar to coin flips with a 50/50 chance that a particle will move in either the +x direction or the -x direction.
a calorimeter fabricated from 135.0 g of iron metal thermallyinsulated from its surroundings contains 173.0 g of water.
A solution of phosphoric acid was made by dissolving 10 g of H3PO4 in 100 ml of water. The resulting volume was 104 mL. Calculate the density, mole fraction, molarity, and molality of the solution. Assume water has a density of 1.00 g/cm3
What is the theoretical yield of bromobenzene in this reaction when 30.00 g of benzene reacts with 65.0 g Br2? b) if the actual yield of bromobenzene was 56.7 g what was the percentage yield
If the specific heat of the salt is 0.663 J/C.g, what is the enthalpy of solution for salt MX if its molar mass is 68.0 g/mol?
Why is it that when you look into any type of light for a long period of time that blotches of black appear when you look away
What is the pH of a solution prepared by mixing exactly 56.1 mL of 0.200 M HC2H3O2 with 14.9 mL of 0.400 M KOH. (Ka for acetic acid equals 1.8 x 10-5).
What pressure in torrs, will be exerted by 3.57g of nitrogen monoxide at 34 degrees C
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 4.40 . Calculate the partial pressure of each gas in the container.
what is the main difference between, 2s or 3s or 4s orbitals, or 2p, 3p or 4p. is it just that they are bigger?
What are the equilibrium partial pressures of CO(g) and CO2(g) when 2.32 atm CO(g) and excess FeO(s) react in a sealed container at 1000°C? PCO atm PCO2 atm
State the equilibrium concentration of each component that makes the solution a buffer solution. Ka = 1.8 x 10-5 for acetic acid.
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