Daily Dose 027 | Chemistry
How do you find molecular weight of a compound
When asked to find the molecular weight of a compound, do you:
- A) Jump right in with confidence?
- B) Fold up and consider moving to the next problem?
For most engineers, problems that fall within the realm of Chemistry can bring a lot of angst.
No longer are we dealing with the tangible matter as a whole, but rather, the atoms, molecules and ions that make up that matter.
But we don’t need to go the route of option B when we hit these types of problems come exam day.
In fact, after running through the processes just once, you will see just how basic they can be.
The FE Exam is designed to stretch us from all angles that relate to the practice of engineering.
And in doing so, it’s expected that we are able to operate at whatever level we are asked in a proficient manner.
This can only happen if you are putting yourself in difficult situations during your FE Exam prep.
At Prepineer, we ensure that our students are prepped and proficient.
And we will do the same for you.
In this video, we dive into a FE Exam Practice Problem, this time in the subject of CHEMISTRY.
The focus will be helping you become comfortable with determining the molecular weight of a compound
Key Definition
What is MOLECULAR WEIGHT?
MOLECULAR WEIGHT is a measure of the SUM of the ATOMIC WEIGHTS of each ELEMENT present in a MOLECULAR, or COMPOUND.
We use the MOLECULAR WEIGHT in CHEMISTRY to help us in determining the stoichiometry in chemical reactions and equations.
MOLECULAR WEIGHT is commonly abbreviated as MW or M.W. with units of ATOMIC MASS UNITS (AMU or U) or DALTONS (DA).
We will also be asked to find the MOLAR MASS, this is the same thing as MOLECULAR WEIGHT, the only difference being the units used…in the case of MOLAR MASS we see gram-moles or grams/moles.
So how can you go about determining the molecular weight of a compound?
Check out the video and see how we can go about solving this type of problem in the most efficient manner.
As always, with Love, Prepineer
Video Review
How to find the molecular weight of a compound
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