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Calculate the work that a person of mass 65kg must do to climb betweencalculate the work that a person of mass 65kg must do to climb between two floors of a building seperated by 4.0m.
the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC. What mass, in g, of benzoic acid was burned. here is what i did, 3226/122.13=26.41 delta t =4.474 so 4.474*12.5/26.41 =2.12 is the answer 2.12g
The delta G inital for the dissociation of an aqueous solution of a weak acid at 25 degrees celcius is 14.8 kJ. What is the calue of Ka for the acid?
Prepare (2R,3S)-2,3-dibromobutane (a meso compound) starting from a racemic mixture of (2S,3S)- and (2R,3R)-2,3-dibromobutane
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
Consider a reaction for which DeltaS is positive and DeltaH is negative. Discuss briefly the conditions under which this reaction will NOT BE spontaneous.
Write balanced net ionic equations (using half-reaction method) for each off the following chemical reactions. Show Work. 1) Solid sodium metal is added to a solution of solfuric acid.
A mixture containing 80.0 nM iodoacetone (designated A) and 64.0 nM p-dichlorobenzene (designated B) gave the relative detector response (peak area of A)/(peak area of B) = 0.71 in a chromatography experiment.
Explain what will happen when the Ag/AgCl gel of an ECG electrode used to monitor a patient in the ICU dries
Calculate the pH for the following case in the titration of 50.0 mL of 0.140 M HClO(aq) with 0.140 M KOH(aq).HClO is a weak acid with a Ka
Find the confidence limit (95% confidence level), true value (from literature), absolute error, and relative error).
The reaction makes more lime at highertemperatures. The reaction goes to completion at 1200. The equilibrium lies far to the right at roomtemperature.
Calculate how many such photons are emitted per second by a 80.0-W incandescent lightbulb if we Assume that the light has an average wavelength = 510.0 nm, .
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