Test 2, Q5

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Melissa Per 2J
Posts: 32
Joined: Fri Sep 29, 2017 7:04 am

Test 2, Q5

Postby Melissa Per 2J » Sun Mar 04, 2018 7:48 pm

We are told to rank the following in order of increasing reducing power: Zn, Mn, Cr and Al, Br2, and I2.

Are these rankings based off the placement of the elements on the periodic table?

Sabah Islam 1G
Posts: 50
Joined: Sat Jul 22, 2017 3:01 am

Re: Test 2, Q5

Postby Sabah Islam 1G » Sun Mar 04, 2018 7:55 pm

These rankings are not based off the placement of the elements in the periodic table. They are based on the standard reduction potentials of each, given in the table provided on the test. Elements with a stronger reducing power will have a lower reduction potential, therefore; organize them based on high to low standard reduction potentials, to organize them in terms of increasing reducing power.
Last edited by Sabah Islam 1G on Sun Mar 04, 2018 7:58 pm, edited 1 time in total.

DianaTrujillo2K
Posts: 40
Joined: Fri Sep 29, 2017 7:04 am

Re: Test 2, Q5

Postby DianaTrujillo2K » Sun Mar 04, 2018 7:57 pm

I believe their order is determined based on their standard reduction potentials. The ones with the smallest reduction potentials are the ones with the most reducing power.

Yea Eun Lee 1H
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

Re: Test 2, Q5

Postby Yea Eun Lee 1H » Sun Mar 04, 2018 11:04 pm

For increasing oxidizing power, do we organize the elements from low to high standard reduction potentials then?

Vincent Chiang 1L
Posts: 54
Joined: Fri Sep 29, 2017 7:05 am

Re: Test 2, Q5

Postby Vincent Chiang 1L » Sun Mar 04, 2018 11:19 pm

Sabah Islam 1G wrote:These rankings are not based off the placement of the elements in the periodic table. They are based on the standard reduction potentials of each, given in the table provided on the test. Elements with a stronger reducing power will have a lower reduction potential, therefore; organize them based on high to low standard reduction potentials, to organize them in terms of increasing reducing power.

Assuming that you mean the last sheet when you say table, how do you know which reduction potential to use if, say for example, Mn appears twice on the sheet?


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