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Use the free energies of formation from standard thermodynamic tables to calculate the standard free-energy change for the decomposition of hydrogen peroxide in the following reaction:
2H2O2(g)----> 2H2O(g) + O2(g)
time 0.0.184200.0.129500.0.069800.0.0311200.0.0191500.0.016what is the insataneous rate at
During lab, we tested HCl and its diluted solution which resulted as pH1.14 and diluted one was pH 2.05. Another dilution was also done using weak acid HC2H3O2 which had pH 2.86 and the diluted one being pH3.45.
During the discharge of an alkaline battery, 13.9 g of Zn are consumed at the anode of the battery. What mass of MnO2 is reduced at the cathode during this discharge
Fe^3+ is reduced to Fe^2+ by S^2-, which is oxidized to elemental S. Write the net ionic balanced equation for this redox reaction in basic solution.
Calculate the pH of a solution prepared by diluting 2.5 mL of 1M acetic acid up to a final volume of 100 mL (pka 4.76)
Compute the lattice energy of Na2O deltaH(f) (Na2O) = -409 kJ/mol deltaH(f) (O,g) = +249 kJ/mol. Utilizing the Born-Haber Cycle to get this- Lattice energy of Na2O = 2564 kJ/mol.
Aldehydes react with KCN and HCN to form cyanohydrins. The nitrile may be further converted to a carboxylic acid or -CH2NH2. Carry out the synthesis of a cynohydrin from cyclopentanecarboxaldehyde and convert it to a carboxylic acid and a -CH2NH2.
Problem- If a 85.0 degrees celsius iron rod weighs 1.20kg was placed in 15.2L of water at 20.0 degrees celsius, what is the temperature of the mixture. (specific heat of iron= 0.450J/gK and density of water at 20.0 degrees celsius= 0.998234g/mL)
analysis of corrosion mechanisms and preventative measuresdissimilar and selective metal corrosion have presented a
Calculate the molarity of 500.0 cm3 of solution containing 18.5 g of calcium nitrate Ca(NO3)2
Calculate the molecular mass of the nonionic solutes: 8.02 g of solute in 861 g of water lower the freezing point to -0.430 degrees C.
Problem- Why would it be important to place the same amount of a solution in the polarimeter tube when measuring optical rotation as the amount of solvent when measuring the blank
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