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Eugenia Kwon 3O

In this case we were given a specific example of the reaction HBr and Propene which is defined to have products that are in lower energy than reactants. For now the organic textbook only went through three examples for each type of reaction (electrophilic addition, aromatic substitution, and the SN2...

Eugenia Kwon 3O

Since organics is coming up

Eugenia Kwon 3O

You can also look at experiments 2 and 3 to calculate the order for B.
If you calculate for the coefficient m below, it should equal to 2.

Eugenia Kwon 3O

I noticed that there is a three step calculation for the entropy - I understand why the first and second steps are there, but why is it necessary to include the third step in which the temperature goes back to room temperature?

Eugenia Kwon 3O

Just to confirm, the standard hydrogen electrode is used as a reference to measure the reduction potentials of other elements?

Eugenia Kwon 3O

Eugenia Kwon 3O

When calculating pH, is it right that we always assume 3 significant figures for the pH?

Eugenia Kwon 3O

If the compound is able to donate a proton, then it is a bronsted acid (e.g CH3COOH). If the compound is able to accept a proton, then it is a bronsted base (e.g. CH3COO-) - notice that the proton is denoted as H+

Eugenia Kwon 3O

Increase in pressure equals to a decrease in volume; what an increase in pressure does is that it increases all the molar concentrations within the system. What Le Chatelier's principle tells us is that in order to minimize this sudden increase in molar concentration, the equilibrium shifts to the s...

Eugenia Kwon 3O

This question is based on the homework question 33 in chapter 17; I understand that ligands have an atom with an electron pair to donate to form a coordinate bond; but how do you determine e.g. whether H2O is a monodentate and CO3(2-) is a mono/bidentate?

Eugenia Kwon 3O

I think the cis and trans deals with organic chemistry and will not likely be discussed heavily until then

Eugenia Kwon 3O

The order that you draw them in is presented by the name of the compound. NH2 and COOH are functional groups in organic compounds, so they always have the same structure (in which for NH2 two H's are bonded to N and for COOH, one O shares a double bond with C while the other O shares a bond with C a...

Eugenia Kwon 3O

We'll be talking about molecular shapes soon during the lecture regarding the positions of the bonds and lone pairs that contribute to the final structure. In this case, since there are two lone pairs and 4 bonds, the shape forms an octahedral and the angle between the I and Cl atoms are drawn at a ...

Eugenia Kwon 3O

The question states to draw the lewis structure of P4 in which each P atom is connected to 3 other P atoms. In the textbook answer section, it draws the P4 structure with a diagonal bond between the 4 P atoms. Is there an explanation for the diagonal bonds?

Eugenia Kwon 3O

Pi bonds are double bonds and Sigma bonds are single bonds - if you draw out that compound, then there will be 12 sigma bonds (it includes the single bond within the double bond), and 1 pi bond

Eugenia Kwon 3O

I agree as well since limiting reagents determine the amount of the product in the reaction. The concept that two limiting reagents exist in a single-step reaction would be hard to visualize since that would mean both would determine the amount of product - which cannot be as calculations will differ.

CHEMISTRY COMMUNITY

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