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quantum efficiency of a photochemical reaction, the absorbing substance was exposed to 320 nm radiation from a 87.5 W source for 28.0 min. The intensity of the transmitted light was 0.257 that of the incident light. As a result of irradiation, 0.324 mol of the absorbing substance decomposed. Determine the quantum efficiency.
If a sample of argon takes place the volume of 208mL at 19 degree C and 755torr at a temperature in degree Celsius would the volume be at 162mL at 675torr
The mixture in the flask is ignited by a spark as well as the reactions represented below occur until one of the reactants is completely consumed.
Typically radicals in the air react with oxygen to produce peroxyl radicals, however sometimes H atom transfer to O2 occurs instead even though the O--H bond of HOO is relatively weak. Explain when does this happen
Can anyone help me identify the relationship between the energy barrier in a typical DLVO theory graph and the time it takes for a colloid to start coagulating. The only information given is temperature (room temp) and weight percentage of the col..
Draw the structural formula of 3,4-diethyl-3-hexene. If more than one isomer of this compound exists, then both isomers must be drawn
What is the molarity (mol/L) of a potassium permanganate solution if 14.09 mL of it was used to titrate a 10.00 mL sample
At 25C, the molar solubility of lead sulfate is 1.4*10^-4 molarity. The solubility in g/L is 4.24*10^-2. 23.6 L of water are required to dissolve 1g of lead sulfate. What is the solubility of lead sulfate in parts per million
the heat of reaction for the combustion of cyclobutane c4h8 is 650.3 kcalmol. what is the heat of combustion for
Calculate the entropy change for the irreversible process of water freezing at -10C. For the crystallization of water at 0C the heat of fusion is 6.01 kJ/mol. The specific heat capacity of water is 4.184J/g C and ice is 2.05 J/g C
Tell what type of chemical reaction is represented by the following chemical equation.
Determine what given process is occurring when the color appears in the flame and an electron emits energy and it makes a transition to a higher energy orbital.
While a 3.60g sample of a non-electrolyte is dissolved in 80.0g of benzene, the resulting solution freezes at 2.75 degrees C. The Kf for benzene is 5.12 degress C/m. pure benzene freezes at 5.48 degrees C. Explain what is the molecular weight of t..
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