Mass fraction (chemistry)

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

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.

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 or its chemical formula

Terminology

"Percent concentration" does not refer to this quantity. This improper name persists, especially in elementary textbooks. In biology, the unit "%" is sometimes (incorrectly) used to denote mass concentration, also called "mass/volume percentage." A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1 %" or "1 % m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities. Instead, the concentration should simply be given in units of g/mL. "Percent solution" or "percentage solution" are thus terms best reserved for "mass percent solutions" (m/m = m% = mass solute/mass total solution after mixing), or "volume percent solutions" (v/v = v% = volume solute per volume of total solution after mixing). The very ambiguous terms "percent solution" and "percentage solutions" with no other qualifiers continue to occasionally be encountered.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Mass_fraction_(chemistry)

Waiting For Love

by 3T
They Say

by 3T
Stubborn (It's A Shame)

by 3T
Someone To Love

by 3T
Sex Appeal

by 3T
Party Tonight

by 3T
Disappeared

by 3T
Guilty

by 3T
Anything

by 3T
Thinkin'

by 3T
Thankful

by 3T
Tease Me

by 3T
Endless Christmas

by 3T
Stuck On You

by 3T
I'm So Alone

by 3T
Gotta Be You

by 3T
Give Me All Your Lovin'

by 3T
Detour

by 3T
Croire En Ces Mots

by 3T
Brotherhood

by 3T
Anything (Spanish Version)

by 3T
Anything (Previously Unreleased Version)

by 3T
7

by 3T
I Appreciate

by 3T
Without You

by 3T
Memories

by 3T
Didn't Mean To Hurt You

by 3T
24/7

by 3T
Why

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Sexual Attention

by 3T
I Need You

by 3T
From Now Until Forever

by 3T
What Will It Take

by 3T
Words Without Meaning

by 3T
With You

by 3T
You Are The Ones

by 3T
Book Of Love

by Toya
Don't Make Me

by Toya
Bounce

by Toya
Bed Of Rust

by Two
Water's Leaking

by Two
Wake Up!

by Two
Stutter Kiss

by Two
My Ceiling's Low

by Two
If

by Two
I Am A Pig

by Two
Leave Me Alone

by Two
Hey, Sha La-La

by Two
Gimp

by Two
Deep In The Ground

by Two

Waiting For Love

by: 3T

[Lil' Mo]
Tupac and Lil' Mo, hmm, how gangsta is that?
Hehe.. ooooh-oooh, ooooh-oooh, ooooh-oooh
[Mo keeps harmonizing in the background]
[2Pac]
One two.. to a nigga nature, haha..
No need to cry now, go wipe your tears, be a woman
Why you actin surprised? You saw the bullshit
Comin fake hair, fake nails, fake eyes too
So why you, bound to fuck wit fake guys too
Aint nothin' hard about it why you lookin sad? Shoulda though about it
Say you learned, I truly doubt it
I guess you got a problem with affection, kinda loose with the love
Gettin freaky with the thug niggaz up in the club
Ask to buy you a drink, you holla Dom Perignon
Knowin I'm a cash getter still I, remain calm
Let you chill with me; plus you was smilin 'til the bill miss me
That's what you get for tryin to dick me
Missed me with that "Buy me this, buy me that" syndrome shit
Bitch get a job if you wanna be rich
Gettin mad cause I cursed and I scream I hate'cha
Introduced you to a nigga nature, feel me?
[Chorus: Lil' Mo]
Kissed the girls, made them cry
Thuggin life, and gettin high
Why you gangsta, all the time?
That's a thug's nature
Though sometimes, I can deal with it
I realize, that I'm feelin it
It's a love and hate relationship
but that's a thug's nature
[add to line four of Chorus first time:] "That's a nigga nature"
[2Pac]
I'm probably too nice at first, I let you kiss me where it hurts
Me and you gettin busy, slingin dick in the dirt
Met you at a pool party it was cool to kick it
See us, tounge-kissin, you was truly with it
Little ecstacy, Hennesey, mix with me
Picture me pay for pussy when the dick's for free
Hey now, where my niggaz at? Tell these hoes
Before I pay; I jerk off, word to Moses
Visions of you sittin there sweaty and wet
Pointin to the places that you want me to hit
Give me room all up in the womb, call the cops
Nigga, hittin walls 'til them bastard drop
Label me Makaveli - thug nigga with bite
Livin life like a rock star's Friday night
Make money, get pussy, always keep a pager
Cell phone in the ride to complete my nature now!
[Chorus]
[2Pac]
Haha.. started as a seed from the semen; straight outta papa's nuts
Lustin for creamin - bitches with big butts
Curves make a nigga cry, tits and shit
When I'm locked down beggin you for porno flicks
Sneak weed in, help a nigga pass the time
Put my name tattoo'd so that ass is mine
Tell everybody; 'Pac put it down for good
A local legend through the whole hood, follow me
I got a gun on me, goin for none on the run baby
You know a nigga need some, is my son crazy?
Why I cry, when I be thuggin til I die
Picture a nigga in heaven, high off weed I fly
Got me missin dead homies wishin phonies would die
Hit the weed and hope it get me high; dear God
Understand my ways, livin major
Blessed with a thug's heart.. and a real live nigga nature
[Chorus]
[add to line four of Chorus:] "That's a nigga nature"
[add to line eight of Chorus:] "Cause that's a nigga nature"
[Chorus]
[add to line four of Chorus:] "Hey, just be a nigga nature"
[add to line eight of Chorus:] "Cause that's a nigga nature"
[2Pac] It ain't my fault
[Lil' Mo] Hehe, Q.D., where you be? Ahh
[2Pac] Don't blame me blame my momma, a nigga nature
[Lil' Mo]
QDIII, and Lil' Mo
Tupac, puttin it down fo' sho' ("Cause that's a nigga nature")
I realize, that I'm feelin it
Cause that's a thug nature
Though sometimes I can deal with it
I realize, I'm feelin it
Love and hate, relationship
Cause that's a thug's nature ("Cause that's a nigga nature")
Yeah yeah yeah.. yeah yeah yeah..
Yeahhh yeah.. and that's a thug's nature
Where you at? Holla

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Latest News for: wt

WT merges para-taekwondo education

WT Senior voted to All-Ohio Esports Overwatch team

2025 0412 Expiry Hertz Energy Inc. 6APR2025 Warrants (HZ.WT) (CNSX Markets Inc)

‘Great Gatsby’ in Spotlight for WT’s Great Books Series (West Texas A&M University)

WT Print Shop Wins National Award (West Texas A&M University)

'Landman' co-creator to speak at WT, and Bob Dylan to be focus of AC events

'Long overdue': Former WT football coach Don Carthel inducted into Hall of Champions

‘Landman’ Co-Creator to Give Annual Nall Lecture at WT (West Texas A&M University)

2025 0340 Expiry Nepra Foods Inc. 30MARCH2025 Warrants (NPRA.WT) (CNSX Markets Inc)

Canadian Investment Regulatory Organization Trading Halt - NPRA.WT Français

Canadian Investment Regulatory Organization Trading Halt - NPRA.WT (CIRO - Canadian Investment Regulatory Organization)

Liberty Announces Warrants to Commence Trading on March 31, 2025, Following Completion of $1.65 Unit Prospectus Offering with $2.05 Exercise Price Warrants to Trade under Symbol SCAN.WT

🔴LIVE The Finals WT Grind /Ranked Grind

WT Alums to Float San Antonio River in Special Gathering

WT Grover Hill Elem. Announces Students Of the Month

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