CHEMISTRY COMMUNITY

Sylvia_Cai_3D

Yes and at about 110 angle

Sylvia_Cai_3D

You use the full arrows because two electrons from the Carbon bond are going to the halogen. Before the reaction the halogen has 3 lone pairs, which is 6 electrons and the Carbon and the halogen share electrons through a bond. During the reaction the electrons from the bond go to the halogen making ...

Sylvia_Cai_3D

You would draw from the reactants to wherever the transition state lies respectively on the two transition states when it is asking for Gibbs Free Energy. When it asks for potential energy, then for the first transition state you would draw from the reactants to the transition state then at the seco...

Sylvia_Cai_3D

I believe for #29 you know it is exergonic from previous examples in class and in the course reader since it was used/discussed multiple times.

Sylvia_Cai_3D

Q: What do chemists call a benzene ring with iron atoms replacing the carbon atoms?
A: A ferrous wheel.

Sylvia_Cai_3D

Q: Do you have any sodium hypobromite?
A: NaBrO

Sylvia_Cai_3D

The oxidation number of Cl2 is 0 in the reactants. The oxidation number of Cl in HClO is +1 and the oxidation number of Cl in Cl- is -1. So the Cl2 can serving as both an oxidizing and reducing agent.

Sylvia_Cai_3D

This is because we are currently trying to find the entropy of formation rather than enthalpy of vaporization

Sylvia_Cai_3D

the kekule structure is the structure where benzene is in a hexagon and the C's are all attached to each other by a bond (alternating single and double bonds) while there are H's attached to the C's.

Sylvia_Cai_3D

Yes, you convert the density to liters, but included in the enthalpy value is the "per mole" part so you have to make the values' units match each other by changing the density value from grams to moles.

Sylvia_Cai_3D

H2O is not in an elemental form so it would not be 0.

Sylvia_Cai_3D

I think that -CH3 has higher electron donating power because -CH3 is a radical and radicals are highly reactive. A higher reactivity in a radical makes it lose the electron easily.

Sylvia_Cai_3D

1m^3 = 1000 L, which is why the value in the first R is 8.206x10^-2 whereas the value in the second R is 8.206x10^-5. The first value has the 1000 from the L multiplied into the 8.206x10^-5 which makes it 8.206x10^-2.

Sylvia_Cai_3D

Acidosis is an excess of acid in the blood that causes the pH to fall below 7.35, and alkalosis is an excess of base in the blood that causes the pH to rise above 7.45. Excess CO2 and water makes H2CO3 which, in the presence of water, dissociates into H3O+ and HCO3- and the H3O+ makes the pH more ac...

Sylvia_Cai_3D

VESPR determines the shape of a molecule based on the number of electron pairs surrounding the central atom. MOT is also a way to determine molecular structure, but the electrons are not stuck in one bond, rather, they are spread out throughout the entire molecule. This is a more accurate representa...

Sylvia_Cai_3D

Bond order is the number of chemical bonds between a pair of atoms. So for example, C-H has a bond order of 1 because it has a single bond. A double bond has a bond order of 2 and a triple bond has a bond order of 3. So, yes, when the bond order is greater than 0 then it is stable because if it were...

Sylvia_Cai_3D

Isoelectronic means that two elements have the same electron configuration so to answer your first question, the electron configuration of Vanadium is the same as that of Fe^3+. The definition of isoelectronic means having the same number of electrons so yes isoelectronic elements have the same elec...

Sylvia_Cai_3D

Yeah, you're right the trend doesn't apply to noble gases because they do not have an affinity for electrons.

Sylvia_Cai_3D

The answer is (d). The question is asking which electron configuration correctly corresponds to the element next to it. (a) is wrong because of Hund's Rule; due to e- repulsion, the e- should occupy different orbitals first. (b) is wrong because in each orbital, the up arrow spin should go in first ...

Sylvia_Cai_3D

I had a similar question, but I am still confused about how it is 6.022X10^23 photons per mole. Is it just a known constant that just like atoms there are a certain number of photons per mole?

Sylvia_Cai_3D

The next on is 397.0 nm

CHEMISTRY COMMUNITY

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Re: Conformation drawings

Re: Half arrows

Re: Standard Gibbs Free Energy of Activation

Re: Intro to Organic Chemistry HW Section 4.3 #29 and 30

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