physical-chemistry

  1. Which is the strongest base?

  2. Does MgCl2 solution coagulate gold sol faster than Fe(OH)3 solution?

  3. Can the HH bond formation energy be greater than the HO bond formation energy in any situation?
  4. Road to chemistry science
  5. Are my intuitions about how batteries work right?
  6. Calculation of Gibbs free energy
  7. Excitation and de excitation...
  8. When there's a photoelectric effect, do the electrons leave altogether or leave one by one?

  9. Given this liquid-liquid phase diagram, is the green line the nitrobenzene-rich phase?
  10. why synthesis of nylon stoichiometry not 1:1?

  11. Variation of equilibrium constant

  12. Some basic concepts of chemistry

  13. Are there any drawbacks of the equivalent concept?

  14. Kinetics of interstellar chemistry: Applying steady state to formation of H₂

  15. Why should a system try to reverse any change that has been done to it?

  16. Harmless liquid that creates smoke
  17. Finding concentration and moles given final and initial pH
  18. my project need some statistical data of lpg (what will be the surrounding air temperature of burner of domestic lpg?)
  19. Compressibility factor
  20. Solidification of perhaps impure paraffine
  21. Why do electrons in the same shell with opposite spins repel each other more and are less stable?
  22. How to balance this manganese peroxide reaction with hydrogen peroxide?
  23. Flaw in my logic on Henry's Law?

  24. Why is the enthalpy of a reaction equal to the difference between the enthalpies of combustion of the reactants and the products?

  25. Ionic equlibrium
  26. Are all reactions with ΔG < 0 spontaneous?

  27. Kinetic energy of molecules in liquid state?

  28. How to calculate the pH of a sodium bicarbonate-sodium hydroxide buffer solution?

  29. Why is the enthalpy change not zero in an adiabatic process?

  30. How do I get the electron density of hydrogen cation, H+ in G09?

  31. Does mass equal to moles times molar mass take into account coefficients?

  32. Range of pH of a solute in water

  33. What is the opposite of a surfactant?

  34. What is the reason behind the phenomenon of Joule-Thomson effect?
  35. Enthalpy of neutralisation for weak acids and weak bases at standard state

  36. Enthalpy of Neutralisation Mass

  37. Why isn't neptunium used in nuclear reactors in nuclear power plants?
  38. Is this a valid method to find percentage of pure ethanol in an impure sample?

  39. How do equilibrium shifts affect solids?
  40. Using Richard Feynman's methods in learning/studying
  41. Why do diamond and graphite have different structures, when they are both composed of carbon?

  42. Eutectic Phase Diagram and Lever Rule

  43. Highest number of shells?

  44. Hydrogen nucleus H cation Accpting Electron
  45. Deriving a relation between entropy, volume and particles through the chemical potential
  46. Standard free energy and cell potential relationship for Pentane-Oxygen fuel cell

  47. What are the degrees of freedom (from Gibbs phase rule) for an azeotropic mixture?
  48. Is dH work dependent?

  49. Determination of Sorbitol in Diabetic Marmalade

  50. What is the charge of the amino acid lysine at pH 2?

  51. Clarification in a particular application of Le Chatelier principle

  52. In rovibrational spectra, when exactly is the Q branch forbidden?

  53. What is so special about positive hydrogen ions that they are used in pH calculation?

  54. Equilibrium, temperature change, and prediction in constant volume

  55. Standard state of a substance - definition

  56. How to make 200 mL of Tris-Cl knowing pH, pKa and volume of Tris?

  57. Calculation of total pressure given ratio of pressure equilibrium constants
  58. How does the redox of a battery happen?

  59. How to simulate phase separation in LAMMPS?

  60. Why does radium have a higher first ionisation energy than barium?

  61. Chemical kinetics of a reaction, rate constant, and activation energy
  62. Why does pOH increase when pH decreases?
  63. Standardising iodine with ascorbic acid
  64. Anhydrous calcium sulfate as a drying agent

  65. Buffer solution calculation using pka
  66. Thermodynamics adding salt to water changes the temperature
  67. Cooling Curves differences between Solution and Pure Solvent

  68. Boiling point of a solution of biphenyl in chloroform

  69. Atomic structure

  70. Why are H+ and OH- ions preferentially discharged in the electrolysis of NaCl(aq)?

  71. Finding overall order of reaction

  72. Molecularity vs Order Of Reaction

  73. What causes the anti-siccative effect of soot (amorphous carbon) as a pigment in oil paints?

  74. Verifying data acquired from a molecular dynamics simulation

  75. Nuclear fusion reactions violate law of conservation of mass, but it has not yet been taken into account. Why?

  76. Why might copper have a lower heat capacity than lithium according to the Shomate Equation?
  77. What equipment is used for two-dimensional IR spectroscopy and how can the molecular structure of a compound be resolved?
  78. A mole of atoms is the number of atoms whose total weight equals the atomic weight?
  79. Is Sulphurated Lime same as Lime Sulphur?

  80. Diamond atoms and UV light

  81. Effect on rate of diffusion in addition of an inert gas

  82. How do I calculate how much sodium hydroxide I need to add to get a new pH?
  83. What is the final temperature of each substance upon absorbing 2.25 kJ of heat?

  84. Why is bromine produced at the anode when aqueous sodium bromide undergoes electrolysis?
  85. Strength of intramolecular vs intermolecular hydrogen bonds
  86. Pre-exponential factor in the Arrhenius equation

  87. Regarding the free energy requirements for reacting gases

  88. Oil refinery - How many plates are needed for a 10 degrees difference in temperature?
  89. Equation to calculate the triple point
  90. How to use the calculate velocity correlation from VanHove correlation?
  91. Which species can't appear in the rate expression for this reaction scheme?
  92. Material that changes color when changing phase from solid to liquid

  93. Chemical combination

  94. Law of Mass action VS Rate law

  95. Gas law and moles
  96. PTFE-to-PTFE or PTFE-to-Copper pressure seal

  97. Titration of sodium carbonate and nitric acid

  98. How to calculate the equilibrium composition after a change in partial pressure of one component?

  99. What makes substances explosive
  100. Calculating new volume during expansion of an ideal gas