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Calculate the work that can be done by a mass of 400 g, falling a distance of 2.75 meters. How much heat could be produced if this mass was allowed to fall freely this distance? What would be the value of ?E mechanical reservoir in the first case and ?E thermal reservoir in the second?
Hydrofluoric acid dissociates in water as represented by the above equation With Ka = 7.2 * 10^-4
In Mexico, avocados are 125 pesos per kilogram. What is the cost in cents of an avocado that weighs 0.45 lb if the exchange rate is 11 pesos to the dollar
When the valves are opened and the gases are allowed to mix at constant temperature, what is the distribution of atoms in each container. Assume that the containers are of equal volume, and ignore the volume of the tubing connecting them.
A test tube containing a mixture of KCl, KClO3, and MnO2 having a total weight of 23.584 g was heated to compose the KClO3. After heating, the mass was found to be 22.347 g.
If the following elements were to form ions, they would attain the same number of electrons as which noble gas? Noble gases- He, Be, Ar
it is given that the half-life of strontium-90 is twenty eight years. calculate how many grams of this nuclide in anbsp
nbspfind out the deltah0rxn fornbsp the given reaction as c3h4g 2 h2g rarr c3h8gnbspgiven nbspinformationnbspc3h4g 4
How would you figure out the hybridization of the nitrogen in HNO3? I know the steric number is 4 so wouldn't it be sp3
Calculate the concentration of oxygen in water given that the Henry's law constant of oxygen is 4.259 ×104 atm and the partial pressure of oxygen is 0.2 MPa.
What observed rotation is expected when a 1.72 M solution of (R)-2-butanol is mixed with an equal volume of a 0.860 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long?
A 25.0 g sample of pure iron at 85.0°C is dropped into 75 g of water at 40.0°C. What is the final temperature of water-iron mixture?
Explain how many orbitals are there in a shell of principal quantum number n. Clue- begin with n = 1, 2, and 3 as well as see if you can recognize the pattern.
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