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Using a carbon dioxide sample that occupies a 2.54 dm3 volume container at standard conditions. Determine the volume of the gas at a pressure of 150.0 kPa and a 26 degree Celsius of temperature?
When 5.00 g of Cr2O3 are allowed to react with 12.00 g of CCl4, if the yield in such experiment is 85.05? which reactant is left over of CrCl3 are obtained? Cr2O3 + 3 CCl4 → 2 CrCl3 + 3 COCl2
Determine the percent by mass of calcium carbonate in the sample
Cinnamon gets some of its flavor from cinnamaldehyde that is 81.79% C; 6.10% H and the rest is oxygen. Determine the empirical formula for this compound (enter your answer in the form CxHyOz)
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.034 M NaOH. (c) sodium hydrogen chromate (NaHCrO4)?
A zero-order reaction has a constant rate of 2.40×10?4 M/s. If after 45.0 seconds the concentration has dropped to 2.00×10?2 M , what was the initial concentration
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
At a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
A rare gold coin (24 karat, or 100% gold) has a mass of 25.54 g. How many atoms of gold are present in this coin
The temperature of the calormieter increases from 19.7 C to 20.6 C if under constant volume condidions, the heat of combusion of glucose is -2805 kJ/mol
A second-order reaction has a half life of 18 s when the intial concentration of reactant is 0.71 M. How long will it take for the concentration
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
If the crystal field splitting (Δo) is 3.44×10-19 J for a cobalt compound, what wavelength of light (in nm) is absorbed when an electron from a lower energy d orbital is promoted to a higher energy d orbital? What color will the cobalt compound ap..
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