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In which series are the carbon-carbon bond lengths arranged in the correct order from shortest to longest?
a. Benzene
b. cyclohexane
c. Cyclohexane
d. ethylene
e. ethylene
The melting point range is measure for two materials (A and B). For material A, the melting point range is from 58.5 C to 64.0 C whereas for material B, the melting point range is from 87.0 C to 89.0 C. Which material, A or B, is more pure
what is the solubility of CaF2 in a solution that has a equilibrium concentration of .01M EDTA? Ksp (CaF2)= 3.9 x 10^-11, Kf(CaEDTA)=5x10^10
Calculate the pH of the solution at the half equivalence point. Explain how the pH at the half equivalence point is related to Ka for the weak acid.
Find the temperature capable of expanding 2.500 liters of chlorine at 18.00°C and 0.9000 atm to 5.200 liters. No change in pressure took place.
The solubility of Ar in water at 25 C is 1.6*10^-3 M when the pressure of the Ar above the solution is 1atm. What is the solubitlity of Ar at a pressure of 2.5 atm
What is the electron geometry. 3. What is the molecular geometry. 4. What are the hybridized orbitals. 5. Is the molecule polar or non-polar
Determine what mass of titanium displaces 65.6mL of H 2 O at the temperature 25 degree Celsius if the density of titanium metal is 4.51 g/cm 3 at the temperature of 25 ° C .?
1.compare and contrast covalentionic and hydrogen bonds.2. what information can you gather from the periodic table.3.
What are the values of E, L, and Lz for an F8+ atom whose electron has the following wave functions, listed as ((Wavefunction Symbol) n,l,ml)
Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s^-1. If you start with 7.0×10?2 M I2 at this temperature
Given that the initial concentration of hypochlorite (ClO-) was 7.5x 10-4M, and the concentration at 200 seconds was determined to be 2.8 x 10-4M.
What is the total pressure in torr of a gas in a sealed flask that contains oxygen at a partial pres. of 0.41atm and water vapor at a partial pres. of 358mmHg?
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