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As a result of a chemical spill, benzene is evaporating at the rate of 1 gram per minute into a room that is 6 m * 6 m * 3 m in size and has a ventilation of 10 m3/min.
a- Compute the steady state concentration of benzene in the room.
b- Assuming the air in the room is initially free of benzene, compute the time necessary for benzene to reach 95 percent of the steady-state concentration.
Carry out the following mathematical operations, and give each result with the correct number of significant figures. (1.05 x10-3)/ (6.135 )
Draw the structure ( Fisher projection) of an optically inactive compound z, C4H6O6
The density of cork is 0.235g/cm3, and the density of lead is 11.35g/cm3. Will the combination of cork plus lead float or sink.
what volume of hydrogen gas is produced when 1.40 mol of carbon monoxide reacts completely according to the following
A certain acid HX is dissolved in water to make a 0.10M solution. At equilibrium, the concentration of X^- ions is 1.0 x 10^-5 M. The Pka of HX is approximately?
How rapidly would each of the following particles be moving if they all had the same wavelength as a photon of red light (wavelength = 750 nm)
If 5 moles of propane and 10 moles of oxygen are sealed in a container and burned, which reactant will be the limiting reactant, and how many moles of carbon dioxide will be produced?
how to calculate chemicals ions and determain the calculations once it becomes a compound chemical
thomas poured 25 ml of .60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
A 11.90 mL sample of this stock solution is added to 52.50 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.
the decomposition of N2O5 in carbon tetrachloride proceeds as follows: 2 N2O5 -> 4 NO2 + O2. The rate law is first order in N2O5. At 64 degree celcius the rate constant is 4.82 x 10^ 3 s ^ -1.
Calculate the separation in energy between the ground state and the first excited state in which one electron occupies the state with n=7. Calculate the frequency of the radiation required to produce a transition between these two states.
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