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Electrocyclic reactions are reversible. The cyclic compound is favored for electrocyclic reactions that form six-membered rings, whereas the open-chain compound is favored for reactions that form four-membered rings. Explain thoroughly in terms of the enthalpy changes that are occurring.
Calculate the heat of combustion of propane in kJ per mole. (Atomic weights: C = 12.01, H = 1.008).
Methanol (CH4O), which is used as a fuel in high-performance racing cars, burns in the presence of O2 to form CO2 and H2O. The molar masses for all substances are given under the balance equation.
Compute the pH of a solution made by mixing 242.2 mg of Tris in 10mLs of 0.170 M HCL and then diluting the mixture to 100mL with water. Explain the mw of Tris = 121.1 g/mol and pKa = 8.08.
A copper wire (density = 8.96 g/cm3) has a diameter of 0.49 mm. If a sample of this copper wire has a mass of 11 g, how long is the wire in ft?
Calculate the concentration of ions in the following solutions, [I] in AgI in AgI solution with [Ag+] = 9.6E-9 M Ksp=8.3E-17
twenty grams of a solute are added to 100g of water at 25c. the vapor pressure of pure water is 23.76 mmhg the vapor
If 7.00 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
The standard enthalpy change for a process is 6.01 kJ/mol. What is the minimum value for the standard entropy change if the process is spontaneous
How do you redraw methane to show the tetrahedral character of carbon in methane by drawing methane using solid wedges and dashed wedges?
Suppose a piece of silver jewelry contains 6.53×1022 atoms of silver (Ag). How many dozens of silver atoms are in the piece of jewelry. Express your answer numerically in dozens.
Calculate Delta Ssurr and Delta Stotal at 70 degree. B) Does benzene boil at 70 degree and 1 atm pressure? Calculate the normal boiling point of benzene.
How much heat is produced in burning 5 mol of C2H2 under standard conditions if both reactants and products are brought to 298 K
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