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What precautions or what type of actions should the EH&S or FS professionals take when faced with a situation involving polychlorinated biphenyls (PCB's.)?
How is the equilibrium yield of C6H12O6 affected by each of the following? 6 CO2(g) + 6 H2O(l) + HEAT C6H12O6(s) + 6 O2(g) (a) increasing PCO2 increases decreases no effect
acetic acid has a Ka value of 1.8x10^-5. How many grams of NaC2H3O2 would have to be added to 100 ml of .1 M HC2H3O2 to prepare a buffer with a pH of 4.5?
If the temperature in the laboratory is 22.7oC and the atmospheric pressure is 0.966 atm, what volume would be occupied by the carbon dioxide produced in this reaction (in cm3)?
One hundred grams of water is saturated with NH4Cl at 50 degrees celsius . According to Table G, if the temperature is lowered to 10 degrees celsius, what is the total amount of NH4Cl that will precipitate.
The temperature of Beaker X = 75°C and the temperature of Beaker Y = 50°C after Five minutes . determine the temperatures be after another 5 minutes have passed?
If all four gases had initial concentrations of 0.650 M, calculate the equilibrium concentrations of the gases.
how many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution
if a sample of 0.29 moles of Ar occupies 3.8L under certain conditions, what volume will 0.66 moles of Ar occupy under the same conditions.
Calculate the average kinetic energies of the CH4 and N2 molecules at 286 K and 556 K?
Determine after how many days will one-sixteenth of a given amount of radon-222 remain and Determine the values of Delta E and Delta H for the system?
An aqueous antifreeze solution is 48.5% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.062 g/cm3. Calculate the molality, molarity and mole fraction of ethylene glycol
4 KO2 + 2 H2O + 4 CO2 4 KHCO3 + 3 O2 1.86 moles of O2 were produced.Now, How many molecules of O2 does this number of moles represent.
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