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현재 위치

Mass fraction ( percentage by mass )

작성자 Uploader : ezchemi 작성일 Upload Date: 2016-03-22변경일 Update Date: 2016-03-22조회수 View : 1856

In chemistry, the mass fraction w_i is the ratio of one substance with mass m_i to the mass of the total mixture m_tot, defined as

w_i = m_i/m_tot

The sum of all the mass fractions is equal to 1:
Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (frequently, though erroneously, called percentage by weight, abbreviated wt%). 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.

w_i = m_i/m_tot * 100 (%)

*** 참고문헌[References] ***

https://en.wikipedia.org/wiki/Mass_fraction_(chemistry)

w_i = ( m_i / m_tot ) * 100

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현재 위치

Mass fraction ( percentage by mass )

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