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Presume that 1.02 g of rubbing alcohol (C3H8O) evaporates from a 57.0 g aluminum block. Explain if the aluminum block is initially at 25, Explain what is the final temperature of the block after the evaporation of the alcohol? Presume that the heat required for the vaporization of the alcohol comes merely from the aluminum block as well as that the alcohol vaporizes at 25.
Determine the enthalpy change for the combustion of ammonium nitrate(NH4NO3)with decane (C10H22) in oxygen. Hf for C10H22= -249.7 kJ/mol
Briefly discuss the importance of the principles of solubility and miscibility when choosing extraction solvents
A pressure measuring device indicates that the blood pressure of a normal person oscillates between 120 mm Hg (at the peak of the heartbeat) and 80 mm Hg (between heartbeats).
The pH of 0.750 M sodium hypochlorite, NaClO, is 10.72. What is the pKb for this base?
Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol in a liquid mixture, respectively and y1 and y2 represent the mole fractions of each in the vapor phase. For a solution of these liquids with x1=.680, calculate the composition..
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
if 10.7 ml of a 0110 m naoh is required to reach the first equivalence point of a solution of citric acid how many ml
imagine two solutions with the same concentration and the same boiling point but one has benzene as the solvent and the
Completely calculate the amount of heat that is produced when containers with 200g of acetylene and 600 g of oxygen are allowed to react
Calculate percent recovery of panacetin from the individual masses of its mictures, sucrose (.044g), aspirine (.093), and the unknown (.339).
LiI has a lattice E of -7.3x10^2 kJ/mol and a heat of hydration of -793kJ/mol. Heat of solution is -60kJ/mol. Determine how much heat is evolved
Patiens suffering from repiratory disorders are often treared in oxygen tents in which the atmosphere is enriched in oxygen. What is the partial pressure of O2 in an oxygen tent consisting of 45% O2 for an atmospheric pressure of 753 mmHg?
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