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What is the half reaction occurring at the anode of the voltaic cell in the balanced reaction shown below? 3MnO4- + 24H+ + 5Fe ----> 3Mn^2+ + 5Fe^3+ + 12H2O
Use the ? - l?+ convention and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compounds.
A Student dispenses 24.95 mL of a hydrochloric acid solution with an unknown concentration into an Erlenmeyer flask. The student then titrates the HCl solution with 0.168 M sodium hydroxide. If 24.33 mL of NaOH is required to reach the equivalence..
find the density of a substance with a mass of 51.2g and a volume of
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule) A. SF4 > CF4 B. CO2 > SO2 C. CCl2F2 > CH2F2 D. XeF4 > SeF4
sample of gas occupies 10.0-mL at 294.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
A student weighed a fuel cup for a bomb calorimetry experiment and obtained 10.3729 g. She then added a benzoic acid pellet and reweighed, finding 11.2872 g
Write the balanced equation for the solvolysis of 2-chloro-2-methylpropane in water. 2. If it took 106 s for the color to change after 2.00 mL of NaOH were added to the flask, calculate the concentration of 2-chloro-2-methylpropane present in solu..
The dipole moment of hydrogen chloride is 1.08D while that of hydrogen bromide is 0.82D. On the basis of dipole-dipole interactions, hydrogen chloride should have a higher boiling point than hydrogen bromide. The opposite is the case, however. Why
Tripeptide Protein: Acidic, Basic, or Neutral? Alanine has an R-group structure of CH3, cysteine has an R-group structure of HS-CH2, and aspartic acid has an R-group structure of HOOC-CH2
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.407 times
Why should you never heat a cooled system, and how does this rule apply to distillation
The feed to reactor contains only C 2 H 4 and HBr. if the molar flow rate = 165mol/s, compute the fractional conversion of the limiting reactant?
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