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Identify the element oxidized and the element reduced, in this chemical equation:
H3AsO4 +H2S arrow H3AsO3 +S + H2O
Identify the oxidizing agent and the reducing agent
Justify why this is a redox reaction
Due to a failure in the building's cooling system, the room's temperature rises to 37 degrees Celsius. Does all of the rest of the water evaporate. What is the partial pressure of water vapor in the room. What is the relative humidity
For each of the subsequent gas-phase reactions state the rate expression in terms of the appearance of each product or disappearance of each reactant.
Suggest at least one characteristic absorption each in the IR-spectra of 9-fluorenone and 9-hydrofluorene that could be used to distinguish between these two compounds
An average human DNA molecule has 5 X 10^8 binucleotides (rungs on the DNA ladder) of four different kinds. If each rung were a random choice of one of these four possibilities, what would the residual entropy associated with this typical DNA mole..
Question- A crystal was analyzed using X-ray diffraction with radiation from a molybdenum source. The observed angle was 11.91°. Determine the distance between layers of the crystal. d= pm?
Calculate the pH of a solution that has an ammonium chloride concentration of .05 M and a sodium acetate concentration of .045 M
Problem- Aldol cleavage of which of the following sugars will produce one mole each of dihydroxyacetone and glyceraldehyde
The density of a given solid and liquid of molar mass 147.2 g/mol at its normal melting temperature of 372.54 K are 992.6 Kg m-3 and 933.4 Kg m-3, respectively. If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K..
Determine the degeneracy g of the lowest 12 energy states for a particle in an infinite three-dimensional potential well whose dimensions are such that a=b=c. for each eigenstate, specify the number of nodes present as well as how many are in each..
Given 100.0mL of a buffer that is 0.50 M in HOCl and 0.40 M in NaOCl, what is the pH after 10.0mL of 1.0 M NaOH has been added. (Ka for HOCl = 3.5 x 10^-8)
Draw a stick model of a water molecule. Sketch a space filling model of a water molecule, show polarity by labeling positive and negatively charged regions of the molecule.
Use the Henderson-Hasselbach equation to calculate the pH of a buffered solution that has a propionic acid CH3CH2CO2H concentration of 0.060 M ad potassium propinate CH3CH2CO2K concentraton of .090 M.
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