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The emf of a n=1 redox cell increases by 0.124 V if the temperature rises from 25°C to 50°C. Assume that the change of entropy and enthalpy do not vary in such a range, calculate ΔrxnS ?
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A 23.5g sample of a metal was heated to 63.45 degrees C. When the metal was placed in a constant pressure calorimeter containing 30.0g of water, the temperature of the water rose from 24.73 degrees C to 29.80 degrees C. Calculate the specific heat..
Below are the enzymes of glycolysis. Write them in the correct order and write out what reaction it carries out on which molecule.
It is well-known that the farm claims the milk contains the fat level of 2.5%. Does the lab test result assist this claim or not at the confidence level of 95%
What is the empirical formula? What is the molecular formula? How many grams of oxygen gas were used to oxidize the original 2.035 grams of compound?
The TBE is usually made as a 5x solution. Explain what volumes of 5x TBE and water are required to make 500mls of a 0.5x solution which is frequently used in electrophoresis
Question- The flask shown here contains 0.419g of acid and a few drops of phenolphthalein indicator dissovled in water. The buret contains 0.190 M NaOH. What volume of base is needed to reach the end point of the titration
Calculate the Gibbs energy,entropy, and enthalpy of mixing when 1 mole C6H14(hexane) is mixed wth 1 mol C7
25 g of hi is injected into a 4 l vessel that contains 20 g ofi2. when the system comes to equilibrium at 400 degreesc
Write all of the resonance structures for o-bromonitrobenzene. Draw a structure for the octahedral complex from the reaction of p-chlorobenzohydroxamic acid with ferric chloride.
How many grams of glucose (C6H12O6) must be dissolved in 563 gram of ethanol (C2H5OH) to prepare a 2.40 x 10-2 m solution?
In the coal-gasification process, carbon monoxide is converted to carbon dioxide via the following reaction:
an aqueous solution is prepared by dissolving 1.50g of hemocyanina protein obtained from crabs in 0.250 l of water. the
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