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kara_kremer_2N

If you look at a PEDD diagram(graph), the energy in the transition state is always higher than the reactants. This means that from the reactants to the transition state, \Delta G standard will always be positive and unfavorable. If this were not the case, the transition state would not be the transi...

kara_kremer_2N

I would draw it out completely, this helps me. When drawing it out, try to make straight lines of all the possible parent chains and find th longest one. Numbering the carbons helps too

kara_kremer_2N

When carbon chains are in the specific compositions mentioned in the course reader, the substituent is given an iso- prefix. In any other arrangement, iso- is not included in naming. For example, -< this skeletal structure substituent would be named isopropyl. Basically iso- is used when the middle ...

kara_kremer_2N

Only the integrated rate law will be linear. Half life is never linear. You only plot the rate law to determine which order it is.

kara_kremer_2N

Try writing out the half-reactions for each problem. That should make things more clear

kara_kremer_2N

All elements have a zero oxidation charge All molecules have the charge specified (some you may have to memorize) Group 1 elements are always +1 Group 2 elements are usually +2 Chalcogens are usually -2 Halogens are usually -1 The charges of the ions have to equal the charge of the total molecule

kara_kremer_2N

At constant pressure, use $\Delta S=$ C_vln (T2/T1) and S tot= k_Bln W₁W₂

$\Delta$ T=T_final-T_initial

kara_kremer_2N

When there is a temperature change of 1 degree Celsius, there's also a temperature change of 1 degree Kelvin (and vice versa). This means they're interchangeable (one-to-one conversion).

kara_kremer_2N

Not anymore

kara_kremer_2N

the desired reaction is: N2(g)+5/2 O2(g)--> N2O5(g)
Divide the second reaction by 2 and add the first and second together to get: 2 NO(g)+3/2 O2(g)--> N2O5(g) with an enthalpy of-169.2 kJ.

Then calculate the standard enthalpy of formation

kara_kremer_2N

As energy levels increase, the gap between them decreases

kara_kremer_2N

To find the percentage of ionization in acetic acid, you have to find the concentration of H3O+ because you have to see how much acetic acid dissociates (ionizes). By finding this concentration, you know what percentage of acetic acid ionized into H3O+. The pH is -log [H3O+]

kara_kremer_2N

In this case, H2O is the Broasted-Lowry base because it accepts an H+ (which is basically a proton)

kara_kremer_2N

Use concentrations, but make sure all are converted into concentrations.

kara_kremer_2N

Yes. The s orbital cannot have pi bonds because there are only two sub-orbitals. The p orbital can because after two of the sub-orbitals bond, there are four available to make up to two pi bonds

kara_kremer_2N

A proton is identical to H+, or a Hydrogen atom without an electron. In the molecule above, the H+ will be attracted to the slightly negative Oxygen. When drawing Lewis structures, H+ is a good representation of a proton and is commonly interchangeable.

kara_kremer_2N

As Lavelle was saying, you use the octet rules as guideline for transferring electrons. Likewise, you can use the same guideline to know the charges of the elements when doing Lewis structures. For example, Oxygen likes gain two electrons to make an octet, so the ion will generally have a charge of ...

kara_kremer_2N

Also, balance Oxygen last if it is present. It tends to be a little more difficult so balancing it last saves some time.

kara_kremer_2N

Try using the equation KE=1/2 mv^2

You should get the kinetic energy for one hydrogen atom. From there you can use dimensional analysis to calculate the kinetic energy per mole of electrons/hydrogen atoms.

kara_kremer_2N

Question 1.11 states, "In the spectrum of atomic hydrogen, several lines are generally classified together as belonging to a series (for example, Balmer series, Lyman series, Paschen series), as shown in Figs. 1.10 and 2.1. What is common to the lines within a series that makes groupie them tog...

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Re: Organic Reaction Mechanisms

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Re: How to write electrode reactions from a cell diagram & write a cell diagram from overall reaction?

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1.11 Different Series