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Consider the following reduction potentials:
Cd2+(aq) + 2e- Cd(s); E° = -0.40 V
Pb2+(aq) + 2e- Pb(s); E° = -0.13 V
Cu2+(aq) + 2e- Cu(s); E° = 0.34 V
Br2(l) + 2e- 2Br-(aq); E° = 1.07 V
Under standard-state conditions, which of the following reactions is spontaneous?
A reaction with the activation energy Ea= 219.00 kJ/mol, has a rate constant k = 2.400 x 101 at 565.00 Kelvin. Determine the rate constant when the temperature is changed to 861.00 Kelvin. R = 8.314 J K-1mol-1
You have a 48.9 g sample of water at the temperature of -60.0 degrees celcius. How much energy is required to: a) heat the ice to 0 degrees celcius
The nucleus X in which A= 200 emits alpha particles of kinetic energy 5.000 MeV. Calculate (a) the velocity of the alpha particles in cm/ns, (b) the kinetic energy of the recoil nucleus in MeV, and (c) the Q value of the alpha emission in MeV. Neg..
When filled withan unknown gas at STP, the container mass is 37.062g. Calculate themolecular weight of the unknown gas, and then state its probableidentity.
What kind of hybridization and bonding will we find in ethyne, C2H2? PART B: Why does it make sense for the methyl cation and anion to have different hybridizations?
in the reaction below, 3.71 atm each of H2 and Br2 were placed into a 1.00 L flask and allowed to react: H2(g) + Br2(g) 2 HBr(g) Given that Kc = 84.1, calculate the equilibrium pressure of HBr.
What is the percent by mass of a solution in which 60. g of NaOH are dissolved in sufficient water to make 100 g of solution.
What are the proper names for each of the pieces of glassware commonly used in distillation. In distillation, how is a column different than a condenser? How is a fractionating column different than a plain column
2-bromo-3-methylbutane reacts with potassium iodide in methanol to yield 2-iodo-2-methylbutane. 2-bromo-3-methylbutane
A solution of pH=3.50, 25 mL of buffer 0.1 M CH3COOH/CH3COONa, we added of 1.00 mL of 0.1 M HCl pKa = 4.76 calculate the final pH?
What is the pH of a 0.50 M CH3COOH and 0.10 M NaCH3COO solution. The p Ka of acetic acid is 4.76.
Write the balanced reaction and determine the mass of KNO3 that should be mixed with 0.4 g of sugar to produce optimally balanced rocket candy.
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