using mass or conc in rate laws


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Summer de Vera 2C
Posts: 65
Joined: Fri Sep 28, 2018 12:16 am

using mass or conc in rate laws

Postby Summer de Vera 2C » Tue Mar 12, 2019 5:36 pm

Hi! Just to confirm, can you either use mass (g) or concentration (M) in the rate laws if it's a sealed vessel? If so, does someone mind explaining this further?

Tuong-Minh Tran 1C
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: using mass or conc in rate laws

Postby Tuong-Minh Tran 1C » Tue Mar 12, 2019 6:08 pm

Rate laws typically only use concentration. If a question gives or asks for the mass of a product or reactant, then you'll have to use the molar mass and volume of the substances involved to convert between mass and concentration.

Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: using mass or conc in rate laws

Postby Yiting_Gong_4L » Tue Mar 12, 2019 11:28 pm

when working with rate laws, you should be using concentration.
given grams of a substance and volume you can solve for the M which is concentration to plug into rate laws.


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