Glossary entry (derived from question below)
English term or phrase:
w/w (weight to weight)
Portuguese translation:
p/p (peso por peso)
Added to glossary by
Edimilson Ferreira
Jun 25, 2009 16:31
14 yrs ago
46 viewers *
English term
Armenia
Precision and clarity
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English, German to Portuguese, and 1 more.
w/w (weight to weight)
English to Portuguese
Science
Science (general)
O contexto é o teor de água de uma substância X, que se diz ser de "4-8% w/w". De acordo com o que encontrei na internet (http://acronyms.thefreedictionary.com/W/w), o significado desse "w/w" é "weight to weight". Queria apenas confirmar como se diz o mesmo em português. Obrigado.
Proposed translations
(Portuguese)
| 5 +8 | p/p (peso por peso) |
José Casquilho
|
| 4 +2 | m/m (massa por massa) |
Marcos Antonio
|
Proposed translations
+8
2 mins
José Casquilho
Portugal
Portugal
Native in Portuguese
Portugal
Quality and Integrity since 1992
Native in: Portuguese (Variant: European/Portugal) 
Works in: English to Portuguese, French to Portuguese, Spanish to Portuguese
Related KudoZ points
:
8
Selected
p/p (peso por peso)
é a unidade utilizada
variante w/v = peso/volume = p/v
variante w/v = peso/volume = p/v
Peer comment(s):
| agree |
imatahan
0 min
|
| agree |
Marlene Curtis
38 mins
|
| agree |
Edward Moreira
: p/p is better than m/m since p and m are not technically the same (though used interchangeably obten)
1 hr
|
| agree |
CicaBarth
4 hrs
|
| agree |
Christina Paiva
4 hrs
|
| agree |
rhandler
5 hrs
|
| agree |
Roberto Cavalcanti
8 hrs
|
| agree |
Marcelo Lino
: A porcentagem em massa é dita, como jargão, porcentagem peso por peso (p/p), mesmo sendo peso e massa conceitos tecnicamente diferentes, embora relacionados.
19 hrs
|
4 KudoZ points awarded for this answer.
Comment: "Obrigado!"
+2
16 mins
Marcos Antonio
Native in Portuguese
Specializes in field
Electric Engineer/Military
Native in: Portuguese
Works in: English to Portuguese, Portuguese to English
Related KudoZ points
:
28
m/m (massa por massa)
Sug.
- Percent by Mass. Also called weight percent or percent by weight, this is simply the mass of the solute divided by the total mass of the solution and multiplied by 100%:
The mass of the solution is equal to the mass of the solute plus the mass of the solvent. For example, a solution consisting of 30 grams of sodium chloride and 70 grams of water would be 30% sodium chloride by mass: [(30 g NaCl)/(30 g NaCl + 70 g water)] * 100% = 30%.
To avoid confusion whether a solution is percent by weight or percent by volume, the symbol "w/w" (for weight to weight) is often used after the concentration such as "10% potassium iodide solution in water (w/w)".
www.ilpi.com/msdS/ref/concentration.html
- Percent by Mass. Also called weight percent or percent by weight, this is simply the mass of the solute divided by the total mass of the solution and multiplied by 100%:
The mass of the solution is equal to the mass of the solute plus the mass of the solvent. For example, a solution consisting of 30 grams of sodium chloride and 70 grams of water would be 30% sodium chloride by mass: [(30 g NaCl)/(30 g NaCl + 70 g water)] * 100% = 30%.
To avoid confusion whether a solution is percent by weight or percent by volume, the symbol "w/w" (for weight to weight) is often used after the concentration such as "10% potassium iodide solution in water (w/w)".
www.ilpi.com/msdS/ref/concentration.html
Peer comment(s):
| agree |
Christina Paiva
4 hrs
|
|
Obrigado, Christina
|
|
| agree |
Marcelo Lino
21 hrs
|
|
Obrigado, Marcelo
|
Discussion
Percent by mass= (mass of component/mass of solution)/100%.