Questions
What is the Frank-Condon principle?​

What is the Frank-Condon principle?​

In: Chemistry

Consider the following reaction: CO2(g)+CCl4(g)⇌2COCl2(g) Calculate ΔG for this reaction at25 ∘C under these conditions: PCO2=...

Consider the following reaction:

CO2(g)+CCl4(g)⇌2COCl2(g)

Calculate ΔG for this reaction at25 ∘C under these conditions:

PCO2= 0.140 atm

PCCl4 = 0.170 atm

PCOCl2= o.740 atm

ΔG∘f for CO2(g) is −394.4kJ/mol, ΔG∘f for CCl4(g) is −62.3kJ/mol, and ΔG∘f for COCl2(g) is −204.9kJ/mol.

Express the energy change in kilojoules per mole to one decimal place.

In: Chemistry

Which ONE of the following represents the CORRECT equilibrium constant expression for the reaction: H2PO4 ¯...

Which ONE of the following represents the CORRECT equilibrium constant expression for the reaction:

H2PO4 ¯ + OH¯ ⇔ HPO42-+ H2O

(a) 1/kb(b) 1/ka (c) kw/ka(d) kw/kb(e) kb/kw

In: Chemistry

Newton’s laws of motion, such as trajectory and momentum, do not apply to subatomic particles as...

Newton’s laws of motion, such as trajectory and momentum, do not apply to subatomic particles as they do to larger objects such as baseballs. Research how subatomic particles (protons, neutrons, and electrons) behave and compare their behavior to the behavior of macroscopic particles that are governed by classical Newtonian physics.

·        How does the quantum, subatomic world differ from the world we can see and touch around us?

·        Specifically, do the same laws of classical physics for such things as momentum work in the subatomic world?

In: Chemistry

Which of the following is NOT a difference of archaeal membrane lipids relative to those of...

Which of the following is NOT a difference of archaeal membrane lipids relative to those of other organisms?

A backbone other than glycerol is used.

Fatty acid esters are replaced with long chain alcohol esters to the glycerol.

The long hydrophobic tails are branched rather than being linear.

Ether linkages instead of ester linkages are used.

In: Chemistry

Choose the most likely pattern for the crystal field diagram for the complex trans–[Ni(NH3)2(CN)4]2– where CN–...

Choose the most likely pattern for the crystal field diagram for the complex trans–[Ni(NH3)2(CN)4]2– where CN produces a much stronger crystal field than does NH3.?

From the answer the pattern show it is a square planer. Could anyone explain it? why is not octahedral?

In: Chemistry

for azo dyes, why does an instantaneous and dramatic color change occur when the two coupling...

for azo dyes, why does an instantaneous and dramatic color change occur when the two coupling reagents are mixed together?

In: Chemistry

fter thoroughly reviewing the physical process of capillary action and surface tension and viscosity, write a...

fter thoroughly reviewing the physical process of capillary action and surface tension and viscosity, write a thoughtful, complete, but concise response to the following: Explain how capillary action is used to transport water and nutrients in trees. Explain how surface tension and viscosity are used to transport water and nutrients in trees.

In: Chemistry

Given what you know about the pharmacophore of morphine (ie draw the new compound) that will...

Given what you know about the pharmacophore of morphine (ie draw the new compound) that will convert the compound from an agonist (morphine) to an antagonist (your experimental compound).

In: Chemistry

A student needs 62.5 g of zinc sulfide, a white pigment, for an art project. He...

A student needs 62.5 g of zinc sulfide, a white pigment, for an art project. He can synthesize it using the reaction: Na2S (aq) + Zn(NO3)2 (aq) = ZnS(s) + NaNO3 (aq) (not balanced) (78.04) (189.4) (97.44) (85.00) How many grams of zinc nitrate will he need if the percent yield of zinc sulfide is 85.0 %?

In: Chemistry

If 0.175 L of 0.364 M ammonia solution is titriated with 0.095 L of 0.35 M...

If 0.175 L of 0.364 M ammonia solution is titriated with 0.095 L of 0.35 M HCI, what is the pH of the resulting solution?

In: Chemistry

What is the constituent particle, bond type, texture (hard, soft, brittle, malleable, ductile), conductivity, melting point...

What is the constituent particle, bond type, texture (hard, soft, brittle, malleable, ductile), conductivity, melting point (high, intermediate, low, variable), solubility of:

Molecular Solids

Covalent Network Structures

Ionic Networks

Metallic Networks

Discrete Molecules

Extended Structures

In: Chemistry

what is the difference between an amorphous, an oriented, and a crystalline plastics?

what is the difference between an amorphous, an oriented, and a crystalline plastics?

In: Chemistry

1)Put the following chromatography solvent in order of polarity as a chromatography solvent: acetone, n-propanol, water,...

1)Put the following chromatography solvent in order of polarity as a chromatography solvent: acetone, n-propanol, water, hexane, diethyl ether, methanol.
2) You will be doing chromatography with a mixture of n-propanol and water. Would it make sense to add
hexane to this mixture to try and make it work better? Explain.
5) Two cars full of people took a day trip. Car A had a lot of little kids and stopped at lots of rest stops and
gas stations to give them a break. Car B had just adults in it, and only stopped once. Of course Car B got
to the destination first. Explain how this in an analogy for the chromatography you are doing in this
experiment.
help please

In: Chemistry

1) a) How would you make 600 ml of a 0.25 M ammonia and 0.20 M...

1) a) How would you make 600 ml of a 0.25 M ammonia and 0.20 M ammonium nitrate from a bottle of 6.0 M ammonia (aq) and a bottle of solid ammonium nitrate.

grams of ammonium nitrate?
   mL of ammonia?
mL of H2O?

   b) Calculate pH (Kb = 1.8 x 10^-5)

2) How many mL of Acid (12 M HCl) or base (12 M NaOH) would you need to shift the pH 0.5 increments down?

In: Chemistry