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A 25.0 g piece of aluminum is dropped into a beaker of water. The temperature of the aluminum drops from 94 degrees C to 67 degrees C. Explain what quantity of heat energy did the piece of aluminum give off?
Consider the combustion of ethylene, . If the concentration of is decreasing at the rate of 4.2×10?2 , what is the rate of change in the concentration of
A liquid has an equilibrium pressure of 130 torr at 25C and is placed into a 1L vessel. What is the pressure difference shown on the manometer, and what is the composition of the gas in the vessel, under each of the following conditions
Can someone explain why Nuclear Fission and Nuclear Fusion processes produce large amounts of energy. The processes are clearly opposite but my understanding of the energy part is lost.
Calculate the concentration of H3PO4 if 25.00 mL of the acid is titrated with 38.77 mL of 1.723 M KOH to produce K3PO4 and water.
A stereoselective reaction is a reaction that yields predominantly or exclusively one stereoisomer when two or more stereoisomers are possible. What reaction is stereospecific but not stereoselective
The volume of NaOH added at the equivalence point was 5.15 mL. Calculate the concentration of the HCl solution
Assuming a linear response between current and concentration, calculate the concentration of Pb(II) in the sample by (a) neglecting the information provided by the internal standard
torsional strain is exhibited during exclipsed newman projections. where would steric hindrance be demonstrated? at any
If the partition coefficients for the DCM/water and DCM/bicarbonate systems were different, what was the reason
Confirm that the z-component of the orbtal angular momentum is a basis for the irreducible representation of A2 symmetry in C3v
Consider the air pollutants NO and NO2, contributors to photochemical smog. Both can be formed by the reation between atmospheric nitrogen and oxygen. At 25 C
cu/cu^2+ concentration cell has voltage of .21V at 25 c. the concentration of cu^2+ in one of the other half cell is 1.4E-3M. What is the concentration of{Cu^2 + in the other half-cell
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