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The radius of a potassium atom is 0.227 nm. Express this radius in the unit centimeters.
Thirty pounds of methane are detained in a sealed container at 100 degrees F the volume of the container is two cu ft. Compute the volume of gas in the container.
At 25 degrees Celsius, by what factor is the reaction rate increased by a catalyst that reduces activation energy of the reaction by 1.00 kJ/mol
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide.
If we assume that simple Fermi-level statistics apply, what is the concentration of donors required? Furthermore, after adding the donor impurity, what is the total number of ionized impurities if the above sample is perfect compensation?
What problems might we see if we increase the energy of the electron beam. And if we reduce the energy of the electron beam.
Draw any one of the skeletal structure of a secondary alkyl bromide with a molecular formula C6H13Br and two stereogenic centers.
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
consider the equilibrium?n2g o2g 2nogat a certain temperature the equilibrium constant for the reaction is 0.0255.
an open-end mercury manometer is connected to a low pressurepipeline that supplies a gas to a laboratory. because paint
Calculate q,w,delta U and Delta H for each segment and for the cycle in which the direction of each process is reversed. In the graph all it says is the P initial =16.6 bar and Vinitial=1.00L and P final=16.6 bar and V final =25L
a sealed balloon is filled with 1.40 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
The alcohol (ethyl alcohol/ethanol) content in a 12 oz. bottle of beer is about 5%. The man's weight is 150 lbs and he was drinking over an hour period. State the chemical reaction that took place in the patient's body.
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