About Finding Limiting Reactant

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Labiba Sardar 2A
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Joined: Sat Jul 20, 2019 12:15 am

About Finding Limiting Reactant

Postby Labiba Sardar 2A » Sun Oct 13, 2019 10:17 am

When you're trying to find the limiting reactant and see which reactant makes the least amount of product, do you have to convert the moles of product to grams or can you just leave it as moles?

KarineKim2L
Posts: 100
Joined: Fri Aug 30, 2019 12:16 am

Re: About Finding Limiting Reactant

Postby KarineKim2L » Sun Oct 13, 2019 10:26 am

You could leave it in moles or convert to grams, either one, because you're trying to find the limiting reactant, so how much product you have will not be in your final answer. However, you need to be able to compare the different amounts of product that would theoretically be created using each amount of reactant they give you, so you would either convert all your hypothetical amounts of your product into moles or leave them all in grams.

Jasmine 2C
Posts: 184
Joined: Wed Sep 18, 2019 12:18 am

Re: About Finding Limiting Reactant

Postby Jasmine 2C » Sun Oct 13, 2019 10:43 am

Honestly, you can leave it either in moles or convert to grams since you are only asking to find the limiting reactant. The limiting reactant would just be which reactant produces a lesser amount of product (moles or grams).
But do keep in mind that if the question asks for how much product it can produce (in grams) make sure to convert.

Jessica Chen 2C
Posts: 103
Joined: Thu Jul 11, 2019 12:17 am

Re: About Finding Limiting Reactant

Postby Jessica Chen 2C » Sun Oct 13, 2019 2:46 pm

Yeah, I agree with the others, you can have it in either moles or grams since it won't affect the final answer. Unless the question specifically asks for the amount of product in grams, I find it easiest to just leave it moles for the sake of finding the limiting reactant.

Jennifer Yang 3F
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Re: About Finding Limiting Reactant

Postby Jennifer Yang 3F » Sun Oct 13, 2019 6:25 pm

When finding limiting reactant, converting to mole makes the process lot easier. However, if the final answer should be in grams, you should convert moles to gram.

JTijerina_4A
Posts: 46
Joined: Mon Sep 23, 2019 12:17 am

Re: About Finding Limiting Reactant

Postby JTijerina_4A » Sun Oct 13, 2019 6:32 pm

You should always convert to moles when looking for the limiting reactant because there is no way to tell from looking at the grams of substance what the limiting reactant is. You also need moles in order to use the mole ratios of the balanced equation to determine what the limiting reactant is and additionally how much product can be made from the given amount in grams.

pmokh14B
Posts: 107
Joined: Sat Aug 17, 2019 12:15 am

Re: About Finding Limiting Reactant

Postby pmokh14B » Sun Oct 13, 2019 6:34 pm

You can leave it in either moles or grams. Unless the question itself asks for either grams or moles.

JinwooLee_1F
Posts: 47
Joined: Sat Aug 17, 2019 12:15 am

Re: About Finding Limiting Reactant

Postby JinwooLee_1F » Sun Oct 13, 2019 6:37 pm

I personally found comparing moles much easier, as you have to keep in mind of the coefficients in balanced equation as well.


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