determine n

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CristinaMorales1F
Posts: 31
Joined: Fri Feb 16, 2018 3:01 am

determine n

Postby CristinaMorales1F » Sun Mar 17, 2019 12:25 am

What is n in these reactions? is it the electrons?

Samantha Silva 1F
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Joined: Tue Feb 13, 2018 3:00 am

Re: determine n

Postby Samantha Silva 1F » Sun Mar 17, 2019 12:28 am

The number of moles.

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: determine n

Postby MaggieHan1L » Sun Mar 01, 2020 12:54 pm

If you're talking about kinetics n is the order of the reactant.

Norman Dis4C
Posts: 101
Joined: Sat Sep 28, 2019 12:16 am

Re: determine n

Postby Norman Dis4C » Sun Mar 01, 2020 5:26 pm

It's essentially the order of the reaction that is determined by the concentration of reactants.

Alison Trinh 1E
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

Re: determine n

Postby Alison Trinh 1E » Sun Mar 01, 2020 9:08 pm

n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.

005162520
Posts: 101
Joined: Tue Sep 24, 2019 12:17 am

Re: determine n

Postby 005162520 » Sun Mar 01, 2020 10:43 pm

How can we calculate n and m?

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: determine n

Postby 805097738 » Mon Mar 02, 2020 4:47 pm

Samantha Silva 1F wrote:The number of moles.


moles of what?

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: determine n

Postby 805097738 » Mon Mar 02, 2020 4:47 pm

Alison Trinh 1E wrote:n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.


how do you know what the order is

Kallista McCarty 1C
Posts: 212
Joined: Wed Sep 18, 2019 12:18 am

Re: determine n

Postby Kallista McCarty 1C » Mon Mar 02, 2020 6:58 pm

For the electrochemistry section, n represents the number of electrons transferred. You can find this by balancing the half reactions.

AlyshaP_2B
Posts: 112
Joined: Wed Sep 18, 2019 12:19 am

Re: determine n

Postby AlyshaP_2B » Mon Mar 02, 2020 7:00 pm

n is the number of moles of electrons you have in your half reactions

Renee Grange 1I
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Re: determine n

Postby Renee Grange 1I » Mon Mar 02, 2020 8:04 pm

n is the number of electrons transferred. In order to calculate n, you must write the half reactions for reduction and oxidation, balance them, and then see the number of electrons transferred.

WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Re: determine n

Postby WYacob_2C » Fri Mar 06, 2020 6:28 pm

In kinetics, n refers to the order of the reactants in a reaction. If n=1, this tells us the rate is directly proportional to the concentration of [reactant].

CMaduno_1L
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: determine n

Postby CMaduno_1L » Sun Mar 08, 2020 8:44 am

remember when given a table with the concentration of reactants and rates of different reactions, the order can be found by setting up a ratio of the concentration from (ex.) (Conc. Experiment 1 / Conc. Experiment 2)^n = (Rate Experiment 1 / Rate Experiment 2). Remember that the variables that represent order are applied to the concentration, not the experimental rates! Hope this helps.

Goyama_2A
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Re: determine n

Postby Goyama_2A » Sun Mar 08, 2020 10:43 am

805097738 wrote:
Alison Trinh 1E wrote:n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.


how do you know what the order is

The order refers to the sum of all the exponents of the concentrations in the rate law. For example, if the rate law was rate=kr[A]^2[B]^3, the overall order would be 5. However, it is important to keep in mind that the order of each individual species only refers to that species’ specific coefficient and is therefore different (unless it’s the only reactant affecting the rate).

Kylie Lim 4G
Posts: 110
Joined: Sat Aug 17, 2019 12:15 am

Re: determine n

Postby Kylie Lim 4G » Sun Mar 08, 2020 2:05 pm

For kinetics, n is the exponent that a concentration is raised to in a rate law, the sum of these exponents is the overall order of the reaction. In the homework problems you can find n based off of given experimental data that shows the variation of rates with concentrations of reactants.

Altamash Mahsud 1I
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Joined: Fri Aug 09, 2019 12:16 am

Re: determine n

Postby Altamash Mahsud 1I » Sun Mar 08, 2020 2:22 pm

If you are referring to kinetics when you say "these reactions", then n is just the order of the reaction. The order of the reaction can give you a basic understanding of how the reaction works (reaction mechanism).

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

Re: determine n

Postby Jasmine W 1K » Sun Mar 08, 2020 5:01 pm

n represents the order of the reactants.


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