CHEMISTRY COMMUNITY

Sophia 3F

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Would this molecule be 1,2,3-trimethylcyclohex-4-enol or 1,5,6-trimethylcyclohex-3-enol?

Would the double bond have lower numbering priority than the substituents?

Thank you!

Sophia 3F

So for example, number 26 in chapter 1 of the ochem book, is it trans because Br has highest priority followed by ch2ch2ch3 which is on the other side?

Sophia 3F

So are common names only used for alkanes? Can they also be used on saturated substituents on alkenes/alkynes?

Sophia 3F

Also, is k prime only equal to k if the reaction is at equilibrium?

Sophia 3F

I have the same question actually so if anyone can clarify that would be great. But I was thinking maybe it's because the question is asking how the current flows within the cell as opposed to through the wire? Electrons flow from anode to cathode through the wire, but I think negatively charged ele...

Sophia 3F

How do we determine whether we use OH- or H+ to balance the equation with?

Sophia 3F

Is this also a reason why more complex molecules have higher entropy?

Sophia 3F

I'm a bit confused on how it was solved in the solutions manual. I thought enthalpy of reaction= (sum of formations of products)-(sum of formations of reactants). In the solutions manual though they did (sum of formations of reactants)-(sum of formations of products)?

Sophia 3F

I'm still having a bit of a hard time wrapping my head around how the temperature of the system can stay constant if heat is entering from its surroundings. What is the heat reservoir that the surrounding heat goes to? Thanks in advance!

Sophia 3F

I think it's because the phase change itself requires energy. So I think for example the energy that would have gone into raising the temperature actually goes into melting ice into liquid water.

Sophia 3F

Sophia Chang: 3C
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Sophia 3F

PV=nRT is the ideal gas law.
And if you move Volume to the other side of the equation you get P=(n/V)RT.
(n/V) is moles over liters, Molarity, which is used to express concentration.
Sorry this isn't very clear but I hope it helped!

Sophia 3F

I think bis- is only used when the ligand already has di- in its name, like ethylenediammine, or if it is polydentate, so I don't think they are interchangeable. For example because oxalato is bidentate, you would use bisoxalato. Hope this helps!

Sophia 3F

I also have the same question. I understand why the molecule is polar because of its dipole moments in the Lewis structure the way its drawn in the solutions manual, but how do we know to draw the chlorides on the same side of the carbon instead of opposite sides? And if the chlorides are drawn on o...

Sophia 3F

Dissociation energy is defined as the energy required to break a bond, so yes, it is possible for bonds to break. Shorter bonds have higher dissociation energies while longer bonds have lower dissociation energies.This indicates that a shorter bond is harder to break than a longer bond. I think bond...

Sophia 3F

How many significant figures to we use in the answer when solving energy level questions? For instance, what is the energy of the radiation emitted when an electron transitions from n=4 to n=2.

Sophia 3F

I think that because the energy calculated is in joules per photon, to get the number of photons, we can just divide the 64J emitted by the lamp by that number. Then to get from numbers of photons to moles of photons, we divide by Avogadro's number. Sorry if this was not very clear, hope it helped!

CHEMISTRY COMMUNITY

Search found 17 matches

Numbering priority

Re: Priority of Atoms in Geometric Isomers

Re: Common Names

Re: Definition of K prime

Re: HW Question 14.91

Re: Basic or acid solution?

Re: Which has more entropy?

Re: Question 8.99

Re: Constant Temperature in Ideal Gas Expansion

Re: phase change

Re: Molecular Shape Video

Re: P=conc(RT)?

Re: Bis v Di

Re: Homework Question 4.25

Re: Breaking Bonds

Sig Figs in Energy Level Questions

Re: Joules to moles of photons