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A gas mixture has three components: N2, F2, and He. their partial pressure are 0.60atm, 0.16atm, and 0.18 atm , respectively. What is the pressure of the gas mixture?
In the laboratory a student combines 26.4 mL of a 0.182 M potassium bromide solution with 17.2 mL of a .329 M potassium bromide solution. What is the molarity of KBr in the final solution
If atoms of element Z have a mass of 0.815 , what is the identity of Z?
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
What is the concentration of ammonium ion in a pH 9 solution that forms when concentrated NaOH is added
At equilibrium, the flask contains 90.6g HI Calculate the equilibrium constant for the reaction at this temperature.
Calculate the volume in liters of a 0.133mol/L copper (II) sulfate solution that contains 150.g of copper (II) sulfate (CuSO4).
The boiling point of an aqueous solution is 101.53 °C. What is the freezing point? Constants can be found here.
A 1L vessel at 0C contains .23 mol N2, 1.6 mol of H2 and1.9 mol CH4. Calculate the pressure of the mixture and the partial pressure of each constituent gas.
all possible structural formulas for all different conjugated dienes that can be completely hydrogenated
When pentane C5H12 burns in oxygen, it produces carbon dioxide and water. If 85.5 g of pentane is burned, what voulume of carbon dioxide is produced at STP (The density of CO2 is 1.997 g/L.)
For bipyridine (bipy) determine the maximum number of coordination sites that the ligand can occupy on a single metal ion.
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
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