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Compare the stabilities of each of the four conjugate bases that would be formed from the doprotonation of the four different OH groups.
Assuming that the 3s- and 3p-orbitals will form molecular orbitals similar to those formed when 2s- and 2p-orbitals interact, according to molecular orbital theory, what will be the bond order for
HyperChem puts it in one of the two degenerate HOMO orbitals. Display these two orbitals and paste them into your report. If the electron were confined to one of them, this would suggest preferential
If 12.1 mL of 0.30 M Na2S2O3 is needed to reach the equivalence point, what is the percent by mass NaClO in the bleach?
How can their efficiency be less than 100% and the Law of Conservation of Energy still be valid? 9. An incandescent light bulb functions because of the flow of electric current.
Either of these equations can be rearranged to obtain the other one, so you need to learn only one of them. When the temperature reaches "100. F in the shade," it"s hot. What is this temperature on th
A saturated solution of nickel(II) sulfide contains approximately 3.6 multiplied by 10-4 g of dissolved NiS per liter at 20°C. Calculate the solubility product Ksp for NiS at 20°C.
Why do we measure the volume of the flask with water rather than using the volume Listed on the side?
Determine the geometry of using VSEPR theory of ch2chch3
Calculate the surface area of an atom with a radius of 0.15 nm and a mass of 100 amu"s.
How to distinguish the difference between oxidizing agent and reducing agent?
What is the conjugate base of hydrazoic acid? For any general weak acid, HA, HA(aq) + H2O(l) H3O+(aq)+ A-(aq) and Ka = a) What is the conjugate base of HA?
Suppose that 26 g of each of the following substances is initially at 29.0degrees C. What is the final temperature of each of the following substances upon absorbing 2.35 kJ of heat?
Use Planck"s constant (h = 6.6260755 x 10-34 J-s) to determine the Energy or frequency for electromagnetic waves: E = h. Describe the photoelectric effect.
A solution of 4.93 g of a carbohydrate in 100.0 g of water has a density of 1.017 g/mL and an osmotic pressure of 3.36 atm at 20.0 degrees C. Calculate the molar mass of the carbohydrate?
Which reactant is the limiting reagent and which is the excess reagent?
Draw three simple molecules that illustrate the geometry of each states.Define" reduction" with reference to organic reactions.
Methyl alcohol (CH3OH) is made by reacting carbon monoxide with H2. Starting with 2.5 g of H2 and 30 L of CO, what mass of methyl alcohol could be produced at STP? which is the limiting reactant?
The molecular weight of citric acid is 0.030M. How many grams of citric acid (molecular weight = 192) are present in a 120ml serving assuming its density is the same as that of water?
A 4.22g sample of CuS was added to excess HCl, and the resulting H2S was collected over water. What volume of H2S was collected at 32 degrees celsius when the atmospheric pressure was 749 torr (1at
An iron bar of mass 869 - g cools from 90 oC to 5 oC > Calculate the heat released (in kilojoules) by the metal. ( specific heat = 0.44 J/(g. c)
What percent of each reactant will remain at equilibrium? What is the free energy change for the reaction after 10% of the reactants have been converted to products?
A piece of copper wire is 25 feet long and has a diameter of 2.0mm. Copper has a density of 8.92g/cm^3. (a) how many mols of copper are there in this wire?
Based on mole ratios. A sample is 59.53% C, 5.38%H, 10.68%N, and 24.40%O what is its empirical formula. A 0.2000 gram sample of a compound (vitamin C) composed of only C, H, and O is burned completely
How many kilojoules are needed to raise the temperature of 325 g of water from 15.0C to 77.0C? How many kilojoules are needed to raise the temperature of 325 g of water from 15.5C to 77.5C?