What is weight fraction of carbon in arabinose
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In chemistry, the mass fraction {\displaystyle w_{i}} is the ratio of one substance with mass {\displaystyle m_{i}} to the mass of the total mixture {\displaystyle m_{\text{tot}}}, defined as[1]
{\displaystyle w_{i}={\frac {m_{i}}{m_{\text{tot}}}}}
The symbol {\displaystyle Y_{i}} is also used to denote mass fraction. The sum of all the mass fractions is equal to 1:
{\displaystyle \sum _{i=1}^{N}m_{i}=m_{\text{tot}};\sum _{i=1}^{N}w_{i}=1}
Mass fraction can also be expressed, with a denominator of 100, as percentage by mass(in commercial contexts often called percentage by weight, abbreviated wt%; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size; mole fraction (percentage by moles, mol%) and volume fraction(percentage by volume, vol%) are others.
For elemental analysis, mass fraction (or mass percent composition) can also refer to the ratio of the mass of one element to the total mass of a compound. It can be calculated for any compound using its empirical formula[2] or its chemical formula.[3]
{\displaystyle w_{i}={\frac {m_{i}}{m_{\text{tot}}}}}
The symbol {\displaystyle Y_{i}} is also used to denote mass fraction. The sum of all the mass fractions is equal to 1:
{\displaystyle \sum _{i=1}^{N}m_{i}=m_{\text{tot}};\sum _{i=1}^{N}w_{i}=1}
Mass fraction can also be expressed, with a denominator of 100, as percentage by mass(in commercial contexts often called percentage by weight, abbreviated wt%; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size; mole fraction (percentage by moles, mol%) and volume fraction(percentage by volume, vol%) are others.
For elemental analysis, mass fraction (or mass percent composition) can also refer to the ratio of the mass of one element to the total mass of a compound. It can be calculated for any compound using its empirical formula[2] or its chemical formula.[3]
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