Recent content by τheory

  1. Τ

    Relationship between Kd and bonding affinity?

    So the question, of why one ligand binds more strongly than the other, pertains to the idea that in a system, ligand B will have a higher concentration of bound vs unbound proteins compared to ligand A at the half saturation level? Edit: To your previous statement, I did answer my own question...
  2. Τ

    Relationship between Kd and bonding affinity?

    From a biochemical context, considering the following two dissociation reactions and their respective dissociation constants for a protein-ligand complex: P*A + B ⇔ P + A + B, this contains the a dissociation constant called Ka = 4 x 10^-3 M P*B + A ⇔ P + A + B, this contains the a...
  3. Τ

    E2 elimination of (E) and (Z) Acids?

    Homework Statement Both (E)- and (Z)-2-chlorobutenedioic acids dehyrochlorinate to give acetylene dicarboxylic acid. This reaction proceeds through the addition of a base and an E2 elimination. The (Z) acid reacts about 50 times faster than the (E) acid. Explain why. 2. The attempt at a...
  4. Τ

    Functional Groups in Alantolactone

    Homework Statement Given the structure of Alantolactone, find two functional groups. 2. The attempt at a solution This was a question that was on my exam recently. I answered Ester and Ether, however Ether was marked incorrect. Instead, only the answers Ester and Alkene were accepted. How is...
  5. Τ

    Polarity of Tetraphenylporphyrin?

    Thanks for justifying my answer. Now on a side note, if TPP was to react with copper (II) acetate with the following formula: TPP + Cu(CH_{3}COO)_{2} \leftrightarrow 2(CH_{3}COOH) + \left[Cu^{2+}\right]\left[TPP^{2-}\right] TPP will have its N-H bond, inside the ring, to break, releasing...
  6. Τ

    Polarity of Tetraphenylporphyrin?

    Homework Statement What is its polarity of a molecule of Tetraphenylporphyrin (TPP) as a whole? 2. The attempt at a solution Given the structure of TPP, there is a ring inside that contains two N-H bonds across from each other and two nitrogen atoms with lone pairs across from each other...
  7. Τ

    Hybridization of Oxygen in Formaldehyde: Exploring the Orbitals and Bonds

    This isn't a homework problem, but rather a question that I thought about. Given a Formaldehyde CH_{2}O molecule, what would the hybridization of the oxygen atom be? I know that the hybridization of the carbon atom would be: C = \frac{\uparrow}{2sp^{2}} \frac{\uparrow}{2sp^{2}}...
  8. Τ

    Electron Configuration of Platinum

    Homework Statement Why is the electron configuration of neutral Platinum: Pt = [Xe]4f ^{14} 5d ^{9} 6s ^{1} and not?: Pt = [Xe]4f ^{14} 5d ^{10} 6s ^{0} I thought that if the two electrons from the 6s sub-shell were to move to the 5d sub-shell, then 5d sub-shell would be fully...
  9. Τ

    Question on Electron Configuration

    Homework Statement What is the electron configuration for Ti+2? The answer to this question, from my homework, is [Ar]3d2, but I am not able to figure out why. 2. The attempt at a solution I originally thought the configuration was: Ti+2 = [Ar]4s2 and not: Ti+2 = [Ar]3d2 My reasoning was...
  10. Τ

    Construction of a Circuit

    What do you mean?
  11. Τ

    Construction of a Circuit

    Homework Statement You are given a battery of 220 V and a radio device that requires 1600 W to run. You are also given four resistors: three 3 Ω resistors and one 20 Ω resistor. What circuit configuration will allow the radio device to run without getting fried? The Attempt at a Solution...
  12. Τ

    Solving Spontaneous Reactions Homework: ΔG -270 kJ

    Um all I can figure out is that the solids are within a closed vessel and that the temperature also appears to be 2600 K since 21.6kJ/8.314 = 2600. The only issue regarding the solid is that I don't know what the volume is, which is prohibiting me from finding the concentration mol/L. The...
  13. Τ

    Calculate Cell Potential at 25°C for Fe & Pd Cells

    Homework Statement Calculate the cell potential at 25°C for the cell: Fe (s) | (Fe^2+ (0.100 M) || Pd^2+ (1.0*10^-5 M) | Pd (s) given that the standard potential for Fe^2+/Fe is -0.45 V and for Pd^2+/Pd is +0.95 V. A. +1.28 V B. +1.16 V C. +1.52 V D. +1.68 V Homework Equations E Cell...
  14. Τ

    Solving Spontaneous Reactions Homework: ΔG -270 kJ

    Homework Statement At 2600 K, ΔG° = 775 kJ for the vaporization of boron carbide: B_{4}C (s) ⇔ 4 B (g) + C (s) Find ΔG and determine if the process is spontaneous if the reaction vessel contains 4.00 mol of B_{4}C (s), 0.400 mol of C (s), and B (g) at a partial pressure of 1.0 x 10^-5...
Back
Top