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How many of joules of heat are needed to raise the temperature of 10.0g of aluminum from 22 degrees C, if the specific heat of aluminum is 0.90 j/g degrees c.
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. What is wrong with your setup
An Ideal gas originally at a temperature T1 and pressure P1 is compressed reversibly against a piston to a volume equal to one-half its original volume, Draw a diagram of the process in the P-V plane.
Suppose y was measured five times and average of these five measurements was 3.75. What is the uncertainty in x based on these five measurements?
Benzene freezes at 5.45 oC. The Kf for benzene is - 5.07 oC/m. What would be the freezing point of a 0.210 m solution of octane in benzene?
What is the value of the equilibrium constant for transformation of carbon from graphite to diamond at 810.0 C?
What volume of hydrogen gas is produced when 68.4 g of iron reacts completely according to the following reaction at 25 C and 1 atm iron (s) + hydrochloric acid (aq)--------- iron(II) chloride (aq) + hydrogen (g)
the pH at the equivalence point. the pH after adding 6.0 mL of acid beyond the equivalence point
Calculate the solubility of calcium oxalate in plain water and the concentrations of calcium and oxalate ions in a 0.010 M Ca(NO3)2 solution
A person is exposed for three days to identical amounts of two different nuclides that emit positrons of roughly equal energy. The half-life of nuclide A is 18.5 days and the half-life of nuclide B is 255 days.
We have a refrigeration unit that works at a pressure of 0.1MPa in the evaporator and 1 MPa in the condenser. The refrigeration unit uses a compressor with an efficiency of 90% and a turbine with 100% efficiency is used to expand the refrigerant a..
or each of the following cases, briefly explain whether the action causes net reaction from left to right, right to left, or no net reaction. Also, state whether the equilibrium partial pressure of NH3 increases, decreases or stays the same. (a) i..
a reaction has an activation energy of 123 kjmol and a rate constant of 0.200 s-1 at 311k. at what temperature will the
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