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Assuming 3.0% H2O2 by weight as a density of 1.00g/mol, demonstrate that an excess of hydrogen peroxide was used in the oxidation step of Fe(II) to Fe(III)
Write the cell reaction that occurs if the two Pt electrodes are shorted together. What is the standard potential of the cell?
You are given the following data. S(s) + 3/2 O2(g) → SO3(g) ΔH = -395.2 kJ 2 SO2(g) + O2(g) → 2 SO3(g) ΔH = -198.2 kJ Calculate ΔH
Determine the exact molarity of NaOH (aq), when a sample of KHC8H404 dissolves in water and is titrated with 24.03 mL of NaOH(aq).
A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?
Identify which will be warmer if you heat equal masses of gold and iron starting at room temperature with 1 kJ of energy
If 0.02 moles of PbCl2 is added to 500 dm3 of a 0.01 M salt water solution, what is the Qs value and will PbCl2 precipitate?Ksp = 1.6 x 10-5.
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
According to the above expression how many moles of KHC8H4O4 are needed to neutralize 25.00 mL of 0.10 M NaOH
Calculate the volume of 6.15% (mass solute/volume solution) sodium hypochlorite ("bleach") that will be required to make 250 mL of 0.500 M sodium hypochlorite.
The lead contained in a 0.2000 g sample is precipitated as PbCrO4. The precipitate is filtrated, washed and re-dissolved in acid to give lead ions and dichromate.
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
An apparatus to be used in a decomposition study was filled with N2 gas at 400.00 mm Hg and 400.0 deg C. The volume of the apparatus was 400.0 mL.
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