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Draw the valid Lewis structures of polyatomic ions in BrO4-. Determine the number of resonance forms For each structure, and also determine the formal charge on each atom. Determine which structure do you expect to contribute the most to the actual structure of BrO4- keep in mind to take in expanded octets, as suitable?
What is the activation energy for a reaction if its rate constant is found to triple when the temperature is raised
A 0.4780-g sample of impure Ca(OH)2 is dissolved in enough water to make 57.00 mL of solution. 20.00 mL of the resulting solution is then titrated with 0.1140-M HCl.
How much heat is required in kJ to melt 60.7 g of manganese at its melting point? The heat of fusion of manganese is 12.9 kJ/mol
solution made from 6.50g of an unknown compound in 27.8g of diphenyl has a molality of .195m. Calculate the molar mass of the unknown.
The Common Ion Effect. What is the pH of a solution that contains 0.250-M benzoic acid and 0.600-M sodium benzoate?
At a certain temperature, the pH of a neutral solution is 7.45. What is the value of Kw at that temperature
Complete the reaction mechanism below for the first two steps of the dehydration of 2,3-dimethylpentan-2-ol.
Nickel metal in 0.1M nickel nitrate solution Copper metal in 0.1M copper nitrate solution The solutions are joined by a simple salt bridge. The nickel corrodes and the copper plates on during operation of the cell. Answer the following question: W..
Identify the substance produced in the liver that helps catalyze this reaction.
Calculate the volume the gas will occupy if the pressure is increased to 1.87 while the temperature is held constant.
Which of these gases will have the greatest density at the same specified temperature and pressure. A) H2 B) CClF3 C) CO2 D) C2H6 E) CF4 8. What is the molar mass of Freon-11 gas if its density is 6.13 g/L at STP
How many moles of O2 are needed to burn 1.05 mol of C8H18
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