Oxidation States

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Mya Majewski 1L
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Joined: Fri Sep 25, 2015 3:00 am

Oxidation States

Postby Mya Majewski 1L » Thu Feb 21, 2019 1:51 pm

As stated in Lecture, Mn has a +7 charge- is their a table we should memorize in order to determine oxidation states?

ThomasLai1D
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: Oxidation States

Postby ThomasLai1D » Thu Feb 21, 2019 2:02 pm

I think Dr. Lavelle said that we would not need to memorize oxidation states of elements, but that they would be easy to figure out from the reaction and the compound it is in.

PranitKumaran1F
Posts: 30
Joined: Thu Nov 08, 2018 12:17 am

Re: Oxidation States

Postby PranitKumaran1F » Thu Feb 21, 2019 2:12 pm

Oxidation states of elements such as transition metals can be calculated based on the reaction they are in, so they don't need to be memorized.

Nicole Lee 4E
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Re: Oxidation States

Postby Nicole Lee 4E » Thu Feb 21, 2019 2:39 pm

Some elements have too many possible oxidation states to memorize. They should be calculable from the reaction.

tierra parker 1J
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Joined: Fri Sep 28, 2018 12:17 am

Re: Oxidation States

Postby tierra parker 1J » Thu Feb 21, 2019 3:46 pm

we don't have to memorize the oxidation states for transition metals since they could have more than one, but we should know the oxidation states of like carbon, hydrogen, and oxygen

Eric Quach 1C
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Joined: Fri Sep 28, 2018 12:20 am

Re: Oxidation States

Postby Eric Quach 1C » Thu Feb 21, 2019 4:04 pm

we don't have to memorize the oxidation states of metals, as they change depending on the compound. Just make sure to memorize the states for oxygen, the halogens, groups 1 and 2 and with that you can figure out the oxidation states of the metals.

A De Castro 14B 2H
Posts: 75
Joined: Fri Sep 28, 2018 12:29 am

Re: Oxidation States

Postby A De Castro 14B 2H » Thu Feb 21, 2019 4:20 pm

You can use Toolbox K.1 in the 6th edition of the textbook to determine the basic oxidation states. As for metals, it usually depends on the other atoms in the molecule they're in. This is because transition metals can have a range of oxidation states, like the ones in the attached image (the ones in green are common).
Attachments
range of oxidation states of the first row of d-block metals (from IB chem HL textbook).png

Nicklas_Wright_1A
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Joined: Fri Sep 28, 2018 12:23 am

Re: Oxidation States

Postby Nicklas_Wright_1A » Thu Feb 21, 2019 4:28 pm

Mn does not always have an oxidation state of 7+. That was only true for that particular example.

Jake Gordon 1A
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Joined: Fri Sep 28, 2018 12:15 am

Re: Oxidation States

Postby Jake Gordon 1A » Thu Feb 21, 2019 4:56 pm

oxidation state of any pure element is 0 ex Cu
a charged monoatomic ion is just equal to the charge ex Cl- is -1 and Ag+ is +1
diatomic ions must add up to the total charge ex HCO3- H is +1 C is +4 and 3 oxygens O is -2 each for a total of -1
group one is +1 group 2 is +2 carbon is usually +- 4 oxygen is -2 except with H2O2 and halogens are -1

Phan Tran 1K
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Joined: Fri Sep 28, 2018 12:19 am

Re: Oxidation States

Postby Phan Tran 1K » Thu Feb 21, 2019 5:25 pm

The best way to find the oxidation state of a transition metal is to use the oxidation states of the other molecules in the compound witht he transition metal.

Melody P 2B
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Joined: Fri Sep 29, 2017 7:06 am

Re: Oxidation States

Postby Melody P 2B » Thu Feb 21, 2019 6:18 pm

This may be of some help!!! It can also be found on the course website
Balancing_Redox_Reactions_Acidic_Conditions.pdf
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