CHEMISTRY COMMUNITY

Shadi_Keyvani_1D

Catalysts are always okay to have in the rate law b/c they are originally present and then reformed but intermediates are not as they are formed and then gone.

Shadi_Keyvani_1D

I think that this would be something we are tested on, meaning an alkene or alkyne and another functional group in the parent chain.

Shadi_Keyvani_1D

It will be given to us on the formula sheet.

Shadi_Keyvani_1D

If the alkene is part of the longest parent chain, it is thought of as a functional group part of that chain, meaning that it must be prioritized in naming. This is is different from a substituent which is attached separately somewhere along the parent chain.

Shadi_Keyvani_1D

This is saying that we don't know the specific structure of compounds with more than 4 carbon atoms due to the existence of constitutional isomers b/c of different unbranched/branched structures.

Shadi_Keyvani_1D

According to the textbook, IUPAC naming and common naming can be combined when naming compounds.

Shadi_Keyvani_1D

it is positive and wants to gain electrons!

Shadi_Keyvani_1D

Write it as a positive answer! This is how the solutions manual does it :)

Shadi_Keyvani_1D

What are some memorization tactics for knowing what is getting oxidized and whats getting reduced?

Shadi_Keyvani_1D

The oxidizing number is shown by the charge of each molecule involved in the reaction. For example: the charge of O is -2. Then, you look at which molecule has been reduced (gained electrons) and which has been oxidized (lost electrons) on the product side.

Shadi_Keyvani_1D

This is because Delta S Subscript M is given per mole so you must always divide by the number of moles of the substance to get it to be per 1 mole. :)

Shadi_Keyvani_1D

I believe that we will be given all of the values for standard enthalpy of formation and specific heat capacity for a problem presented on quizzes/tests. I don't think we are required to memorize any of these values.

Shadi_Keyvani_1D

Changing the amount of heat energy usually causes a temperature change. However, during the phase change, the temperature stays the same even though the heat energy changes. This energy is going into changing the phase and not into raising the temperature. This means that there is a constant tempera...

Shadi_Keyvani_1D

I'd like to switch! I have Lec 1 Disc 1D if you're interested. My email is shadikeyvani386@yahoo.com.

Shadi_Keyvani_1D

As the question states, this equation from the experimentally observed H-atom line spectrum, so it is empirical since it is based on observation rather than simply theory.

Shadi_Keyvani_1D

The second dissociation results in 5.6 x 10^-11 mol/L which we add to 4.0 x 10^-5 and end up with 4.0x 10^-5 mol/L because 5.6 x 10^-11 mol/L is so small in relation that makes it have no significance when the addition is done.

Shadi_Keyvani_1D

Cations all have positive charge and anions all have negative charge.

Shadi_Keyvani_1D

If there is already a prefix in the name of the ligand (for example, ethylenediamine) and you have 2 or more of that in your coordination compound, you would use bis, tris, etc. to indicate that.

Shadi_Keyvani_1D

I don't think we have to specify the specific ones based on the book and solution manual.

Shadi_Keyvani_1D

This is for all heteronuclear models.

Shadi_Keyvani_1D

[CoBr2(en)2] SO4 but I think it should be an ion with a negative 1 charge.

Shadi_Keyvani_1D

From my understanding, an element with a bond order of 0 cannot exist but those with fractional values exist and are not stable.

Shadi_Keyvani_1D

Hallow=Hallow : Halloween!

(Double bond means "ene")

Shadi_Keyvani_1D

Another disadvantage could be the lack of 3 dimensional modeling. The specific shape of the molecule is not made known by the Lewis Structure.

Shadi_Keyvani_1D

You don't need to know this for Quiz 2, it will be covered in Chapter 4.

Shadi_Keyvani_1D

What element is a girl's future best friend?

Carbon!

Shadi_Keyvani_1D

I understand how to determine the molecular formula, but how would I find the empirical formula based on the structures? Question F.25

CHEMISTRY COMMUNITY

Search found 27 matches

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Re: Functional Groups and Double/Triple Bonds

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Re: Alkenes as functional groups

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Re: Naming: IUPAC & Common Naming

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Determining Empirical Formula from Ball and Stick Structures [ENDORSED]