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A chemical reaction takes place in a container of cross-sectional area 100 cm2. As a result of the reaction, a piston is pushed out through 21 cm against an external pressure of 534 torr. What is the value for w for this reaction?
calculate the number of molecules present in each of the following samples.
CHEM 354 Extended Problems, The variation of EMF for the cell below with temperature is shown in the graph below.
When you analyze the proteins by electrophoresis, you find that protein B moves further towards the positive end of the gel. Explain if this result is consistent with your hypothesis about the difference between the two proteins.
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?
Two liters of a buffered solution are created from .55 M HC3H5O3 (Ka= 1.3 E-4) and .45 M NaC3H5O3. what is the pH of the solution?
Demonstrate that L^2and Lzcommute withanyHamiltonian (for a single particle) for which the potential energy is spherically symmetric
Describe the ideas behind direct comparison and standard addition methods in the analysis of ICP-OES
A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes. What is the equation for the equation for the overall cell reaction. What is the emf generated by the cell under standard conditions
Compute the mass of H 2 O formed when 22 grams of propane are burnt if 4.4grams of propane are burnt in excess O2 7.2g of H 2 O are formed.
determine the empirical formula for each substance.1. a dead alkaline battery is found to contain a compund of mn and
a car radiator coolant, loses 999J of heat. What was the initial temperature of the ethylene glycol if the final temp is 32.5 degrees C
bathed by an atmosphere of nitrogen at 77K and 1 bar? Assume every nitrogen molecule that strikes the surface sticks and that a nitrogen molecule covers an area of 1.1e^5 pm^2.
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