FW meaning in Chemistry ?

Answer: What is Formula Weight mean?

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles. The molar mass is a bulk, not molecular, property of a substance. The molar mass is an average of many instances of the compound, which often vary in mass due to the presence of isotopes. Most commonly, the molar mass is computed from the standard atomic weights and is thus a terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth. The molar mass is appropriate for converting between the mass of a substance and the amount of a substance for bulk quantities.

The molecular weight is commonly used as a synonym of molar mass, particularly for molecular compounds; however, the most authoritative sources define it differently (see Molecular mass).

The formula weight is a synonym of molar mass that is frequently used for non-molecular compounds, such as ionic salts.

The molar mass is an intensive property of the substance, that does not depend on the size of the sample. In the International System of Units (SI), the coherent unit of molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.

The mole was defined in such a way that the molar mass of a compound, in g/mol, is numerically equal (for all practical purposes) to the average mass of one molecule, in daltons. Thus, for example, the average mass of a molecule of water is about 18.0153 daltons, and the molar mass of water is about 18.0153 g/mol.

For chemical elements without isolated molecules, such as carbon and metals, the molar mass is computed dividing by the number of moles of atoms instead. Thus, for example, the molar mass of iron is about 55.845 g/mol.

Since 1971, SI defined the "amount of substance" as a separate dimension of measurement. Until 2019, the mole was defined as the amount of substance that has as many constituent particles as there are atoms in 12 grams of carbon-12. During that period, the molar mass of carbon-12 was thus exactly 12 g/mol, by definition. Since 2019, a mole of any substance has been redefined in the SI as the amount of that substance containing an exactly defined number of particles, 6.02214076×1023. The molar mass of a compound in g/mol thus is equal to the mass of this number of molecules of the compound in g.

reference

Full Form	Category
FloodWater	Academic & Science
Field Wind	Academic & Science
Finishing Work	Academic & Science
Footwall	Business
Forge World	Business
Filling and Wrapping	Business
Flug Werk	Business
Fat Wallet	Business
First Wall	Chemistry
Formula Weight	Chemistry
Fashion Washington	Community
Fire Works	Community
Faith Weaver	Community
Finnegans Wake	Community
Fourth World	Community
Faith Weavers	Community
Finding Wayne	Community
Friedrich Wilhelm	Community
Fred Wills	Community
Field Width	Computer Assembly Language
Function Word	Computer Assembly Language
FORTRAN Wrapper	Computing
Fast Write	Computing
Fire Wall	Computing
File for Writing	Computing
FrameWork	Computing
Filament Wound	Electronics
Frequency Weights	Electronics
Full Wave	Electronics
Fluctuating Wildly	Electronics
Framework Database File	File Type
FeatherWeight (type of sewing machine)	General
Fusible Web	General
Feable Weiner	General
Forsaken World	General
Flash Welding	General
Free Weezy	General
Floquet Wave	General
Fillet Weld	General
Fort Wayne	General
Free Wall	General
Fire Water	General
Flash Write	General
For What	General
Freakin Wide	General
For Weight	General
Full Wall	General
Federation Warp	General
First White	General
for Forward	General
Forward What	General
Fashion Week	General
Foul Water	General
for The World	General
FWPOS where	General
Federal Withholding	General
Fresh Weight	General
From Words	General
Future Wife	General
Forgotten Wars	General
Ford waltanna	General
Freis West	General
Flat White	General
Fenris Wolf	General
Feature Worthy	General
Flood And Wind	General
F*** With	General
Frank Williams	General
Fees Waiver	General
Fecking Wonderful	General
Fresh Water	Governmental
Fair Witness	Governmental
Fiscal Week	Governmental
Female White	Governmental
Fifth Wheel	Governmental
Frohe Weihnachten!	International
Fastweb	Internet
Fellow Worker	Jobs
Formal Weak	Maths
Friendly Wallaby	Medical
Flame Wars	Messaging
Fixed Wing	Military and Defence
Flying Warriors	Military and Defence
Focke Wolfe	Military and Defence
Focke Wulf	Military and Defence
Fighter Wing	Military and Defence
Weather Correction Factor	Military and Defence
Forward Wavelet	Physics Related
Flag Word	Space Science
Fuel Wasting	Space Science
Fantasy Wrestling	Sports
Featherweight	Sports
Fairway Wood	Sports