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It is a term used to denote the part, or fraction, of something that actually has mass, or the amount of a specific element within a compound.
For example, think of a jar full of marbles. There is some space in between the marbles that is empty, yes it contains air but for the purpose of this example consider it to be empty space. If the total volume of the jar the marbles occupy is 95%, then you could say that the mass fraction in the jar is 95% of the total volume.
You could also think of this in another way. Compounds are made up of various elements. Say you have common bleach, sodium hypochlorite, NaOCl, and you want to know what % of bleach is actually chlorine. The total weight of a molecule of NaOCl is 74 g/mol. Since Cl weighs 35g/mol the mass fraction of chlorine in NaOCl is 35/74 *100% or 47.29%.
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How do you find a mass fraction?
mass fraction of Substance A = (mass of Sub. A) / (total mass)
How do you convert mass fraction to weight percent?
Multiply the mass fraction by 100.
How do you solve for denisty?
Get the mass and then the volume Put them into a fraction Mass/Volume
What is the exact fraction of an electron's mass?
1/1836
What is the density ratio as a fraction?
Mass of a substance to its volume
How do you find a mass fraction?
mass fraction of Substance A = (mass of Sub. A) / (total mass)
How do you convert mass fraction to weight percent?
Multiply the mass fraction by 100.
What is the mass percent composition of an element in a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
How do you convert volume fraction into density fraction?
volume = mass/density and density = mass/volume
Is the mass of the moon greater than the mass of the earth?
No. The mass of the moon is a fraction of the earth's mass.
Does the thermosphere only contain a tiny fraction of the atmosphere's mass?
Yes the thermosphere only contains a tiny fraction of atmospheric mass.
What layer contains a small fraction of the atmosphere mass?
Ozone layer contains a fraction of mass. It is made up of ozone gas.
How do you solve for denisty?
Get the mass and then the volume Put them into a fraction Mass/Volume
Which layer of the atmosphere contains only a tiny fraction of the atmosphere's mass?
Ozone layer is the layer. It contains tiny fraction of atmospheric mass.
What is dryness fraction of steam?
it is the ratio of mass of saturated vapour to the total mass of liquid
What is the mass fraction of P in tetraphosphorus hexaoxide?
0.563
What is the exact fraction of an electron's mass?
1/1836
