moles of reagant

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Gisela F Ramirez 2H
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

moles of reagant

Postby Gisela F Ramirez 2H » Sun Dec 09, 2018 3:13 pm

I want to make sure I am right but say you are asked to find the limiting reagent in a chemical reaction and then asked how many moles of that reagent is required, would you use the coefficient in the equation or do you need to solve it with conversions?

armintaheri
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

Re: moles of reagant

Postby armintaheri » Sun Dec 09, 2018 4:10 pm

You would use the coefficients to find out exactly how much of one reactant you need to completely react with a given amount of the other reactant.

Krista Mercado 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: moles of reagant

Postby Krista Mercado 1B » Sun Dec 09, 2018 4:17 pm

You would have to convert the amount of grams of the limiting reactant to moles, then compare the ratios of the reactants in the balanced equation to figure out how many moles of the reactant are required.

Lynsea_Southwick_2K
Posts: 55
Joined: Fri Sep 28, 2018 12:25 am

Re: moles of reagant

Postby Lynsea_Southwick_2K » Sun Dec 09, 2018 5:50 pm

You go from grams to moles and then look at the moles required from the equation and multiply those values.

sarahforman_Dis4l
Posts: 15
Joined: Sat Aug 17, 2019 12:18 am

Re: moles of reagant

Postby sarahforman_Dis4l » Sat Sep 28, 2019 4:10 pm

What you need to do is first find the limiting reagent. You would do this by converting mass of both reagents to moles, and then using the stoichiometric coefficients to analyze which reagent will run out first. In short, you would need to use the coefficient in the equation in your conversions in order to solve this problem.


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