Actual yield determination by experiment

[Adrian Tudini]

TL;DR Summary

Question: How does one determine the actual yield by experiment?
I am a chemistry newbie.

Hi

just one question. Can someone point to me some resources on how to calculate the actual yield under experimental conditions?

thanks.Adrian

 

[Borek]

Actual yield is something that you measure, not calculate.

That is, unless you want to express it as a percentage of a theoretical yield, but then it is just a trivial case of doing stoichiometry and calculating percentage obtained vs expected.

 

[Adrian Tudini]

Hi

Thanks for that.

How do you measure the actual yield itself under experimental conditions?

What equipment do you need etc...?

Thanks.

 

[Borek]

What methods of measuring amount of substance do you know?

 

[Adrian Tudini]

10-100grams of Carbon , Boron, lithium nitrate (hygroscopic) + hydrogen (excess of)

 

[Borek]

Huh? What it has to do with any measurement?

 

[Adrian Tudini]

Hi

Thanks for that.

Lets start over

i want to find the actual yield of this reaction:

Given 1 gram of Carbon, 1 gram of LiNO3, 1 gram of Boron + excess hydrogen, how do I determine the actual yield by experiment?

Thanks,

Adrian

 

[Borek]

First you need to know what is produced and what is the reaction equation. Listing some substances and calling it "a reaction" is - at best - a misnomer.

 

[Adrian Tudini]

Thanks for that.

The above reaction forms Boron Carbide, water and Lithium Nitrite (LiNO2)

That is, 4B + C+ LiNO3+ H2 ->B4C + H2O+ LiNO2 (a voltage applied)

I do not know how much is produced of the products.

Thanks.

Adrian