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What amount of energy would be released upon formation of a mole of 28Si nuclei from their subatomic particles?
describe the underlying concepts of how laboratory activity works. descreption should be at least half page
here A solution of a primary standard KHC8H4O4 was prepared by dissolving 0.4877g potassium hydrogen pthalate in 50 ml H2O. Titration with KOH required 23.84 ml to reach a phenopthalein end point . What is the molarity of KOH
Predict whether each of the following should form a normal or inverse spinel (hint: think about CFSE's): MgV2O4, VMg2O4, NiGa2O4, ZnCr2S4, NiFe2O4, Mn3O4, Fe3O4
Assign absolute configurations to the chiral carbons n one of your Fischer projections. Indicate which of the compounds you have drawn would be optically active. Explain your reasoning.
Solid soduim reacts violently with water producing heat hydrogen and sodium hydroxide. How many moeclues of hydrogen gas are formed when 48.7 g of sodium are added to water.
Which has the larger hydration energy, AL+3 or Li+ (Both ions are about the same size)
Enough of a monoprotic acid is dissolved in water to produce a 0.0104 M solution. The pH of the resulting solution is 2.46.
Write the reaction of butanoic acid with propanethiol.
You may use expanded, condensed, or line structures, provided they are neat and legible. If you could not identify one of your components, then pick an appropriate component from the list of unknowns.
If 25 mL of 7.0 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid?
What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.
What mass of potassium carbonate K2CO3, must be weighed out to prepare 125.0mL of a 0.0500M solution of salt?
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