What do do when moles are given

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Kobe_Wright
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What do do when moles are given

Postby Kobe_Wright » Thu Jan 31, 2019 1:26 pm

when a problem says there is 3 moles or 6 moles of a certain molecule do we just use that value to find the concentration or do we put the moles given in the exponent of our equilibrium constant equation?

Chem_Mod
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Re: What do do when moles are given

Postby Chem_Mod » Thu Jan 31, 2019 1:34 pm

The moles are used to find concentration, the exponent depends on the stoichiometric coefficient.

klarratt2
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Re: What do do when moles are given

Postby klarratt2 » Thu Jan 31, 2019 2:07 pm

If a question gives you moles of a substance, it will probably give you the volume of the solution too. Use that to find the concentration then use the stoichiometric coefficients as the exponents in the equilibrium constant equation.

Dayna Pham 1I
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Re: What do do when moles are given

Postby Dayna Pham 1I » Thu Jan 31, 2019 4:03 pm

Kobe_Wright wrote:when a problem says there is 3 moles or 6 moles of a certain molecule do we just use that value to find the concentration or do we put the moles given in the exponent of our equilibrium constant equation?


I think we use those values of moles to find Q and then compare it to equilibrium.

Amar Singh
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Re: What do do when moles are given

Postby Amar Singh » Sun Feb 03, 2019 2:34 pm

When moles are given you typically use the volume to find the molar concentration, or use it to find the Q value.

katie_sutton1B
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Re: What do do when moles are given

Postby katie_sutton1B » Sun Feb 03, 2019 3:08 pm

You want to use the moles to find the concentration by dividing by the volume. The coefficients of the balanced equation give you your exponent.


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