Concentration

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Melissa Solis 1H
Posts: 100
Joined: Wed Sep 30, 2020 10:08 pm

Concentration

Postby Melissa Solis 1H » Sat Jan 09, 2021 10:01 pm

I was wondering why the concentration had to be positive? I'm not sure if I missed it during lecture, thanks!

Samantha Low 3D
Posts: 98
Joined: Wed Sep 30, 2020 10:04 pm

Re: Concentration

Postby Samantha Low 3D » Sat Jan 09, 2021 10:03 pm

Concentration is moles/liters, and we can't have a negative amount of moles or a negative volume (liters). Thus, the numerator and denominator will always be positive so concentration will always be positive. Hope this helps!

Natalie 3k
Posts: 86
Joined: Wed Sep 30, 2020 10:11 pm

Re: Concentration

Postby Natalie 3k » Sat Jan 09, 2021 10:04 pm

I believe concentrations can't be negative because they measure how much of a substance is present. So if there was none of something, then the concentration would just be 0, not anything in the negatives.

Shruti Kulkarni 2I
Posts: 95
Joined: Thu Oct 08, 2020 12:16 am

Re: Concentration

Postby Shruti Kulkarni 2I » Sat Jan 09, 2021 10:15 pm

Concentrations cannot be negative because it is defined by moles/L. As it is impossible to have a negative number of moles or a negative number of L, the concentration must be positive.

Grace_Remphrey_2J
Posts: 90
Joined: Wed Sep 30, 2020 9:54 pm

Re: Concentration

Postby Grace_Remphrey_2J » Sun Jan 10, 2021 3:05 pm

Since concentration has moles/liter as its units, you cannot have a negative value. Hope this helps!

Charmaine Ng 2D
Posts: 92
Joined: Wed Sep 30, 2020 9:37 pm

Re: Concentration

Postby Charmaine Ng 2D » Sun Jan 10, 2021 3:09 pm

Concentration is a measurement of moles/Liter, and since you can't measure negative moles or negative Liters of something, it's not possible for concentration to be negative!

Isabella Cortes 2H
Posts: 85
Joined: Wed Sep 30, 2020 9:37 pm

Re: Concentration

Postby Isabella Cortes 2H » Sun Jan 10, 2021 3:11 pm

Concentrations cannot be negative since it is moles divided by liters and you can't measure negative amounts of either.

Pranav Daggubati 3C
Posts: 109
Joined: Wed Sep 30, 2020 9:35 pm

Re: Concentration

Postby Pranav Daggubati 3C » Sun Jan 10, 2021 3:12 pm

You cant have negative moles of something, it just doesn't make sense. Concentration is moles/liters, so either of the two things have to be negative for a negative concentration, which is impossible.

MichaelRaad_1F
Posts: 86
Joined: Wed Sep 30, 2020 9:35 pm

Re: Concentration

Postby MichaelRaad_1F » Sun Jan 10, 2021 6:56 pm

The concentration has to be positive because any concentration less than 0 does not exist, 0 concentration means we do not have anything.

Chance Herbert 3A
Posts: 71
Joined: Wed Sep 30, 2020 9:55 pm

Re: Concentration

Postby Chance Herbert 3A » Sun Jan 10, 2021 6:59 pm

A concentration or Molarity is the number of moles per Liter. It is not possible to have a concentration that is less than zero because this would imply that it is possible to have a negative number of moles or liters.

Armen_Isayan_2L
Posts: 96
Joined: Wed Sep 30, 2020 10:09 pm

Re: Concentration

Postby Armen_Isayan_2L » Sun Jan 10, 2021 7:01 pm

It is evident that concentrations cannot be deemed negative since it is defined by moles, you cannot have a negative mole per litre. Hence, concentrations are positive.

Zainab Jamali 1H
Posts: 100
Joined: Wed Sep 30, 2020 9:54 pm

Re: Concentration

Postby Zainab Jamali 1H » Sun Jan 10, 2021 7:22 pm

The values of volume and moles can never be negative so the ratio of the two (concentration) can also never be negative.

Andy Hernandez
Posts: 56
Joined: Wed Sep 30, 2020 9:50 pm

Re: Concentration

Postby Andy Hernandez » Sun Jan 10, 2021 7:26 pm

Concentration is in moles/liters. We can't have a negative amount of moles or a negative volume so it's positive


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