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weight average molecular weight

Spanish translation: peso molecular promedio en peso

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:weight average molecular weight
Spanish translation:peso molecular promedio en peso
Entered by: Paulo Gasques

16:08 Apr 22, 2020
English to Spanish translations [PRO]
Medical - Chemistry; Chem Sci/Eng / Chemistry
English term or phrase: weight average molecular weight
Hello,

What would be the equivalent in Spanish of "weight average molecular weight" where "weight" appears twice:

"In embodiments of the disclosure, the polyethylene composition has a ratio of Z-average molecular weight to weight average molecular weight (Mz/Mw) of from 2.0 to 5.0, or from 2.25 to 4.75, or from 2.25 to 4.5, or from 2.5 to 4.25, or from 2.75 to 4.0, or from 2.75 to 3.75, or between 3.0 and 4.0."
Fernanda1984
Argentina
Local time: 08:28
peso molecular promedio en peso
Explanation:
Buen dia!

Deseo que todo este bien con usted y con tus seres queridos.
Asi lo veo en el contexto que pasaste.

Saludos
Selected response from:

Paulo Gasques
Mexico
Local time: 04:28
Grading comment
Thanks!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +3promedio ponderado del peso molecular
Neil Ashby
3 +2peso molecular promedio en peso
Paulo Gasques
4 +1peso molecular promedio en peso
Maria Mercedes Munoz Monge
5peso molecular promedio ponderal
Yaotl Altan
Summary of reference entries provided
http://www.saber.ula.ve/bitstream/handle/123456789/16743/polimeros.pdf?sequence=1&isAllowed=y
Yvonne Becker
Promedio ponderado del peso molecular (Mw)
Chema Nieto Castañón

  

Answers


5 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +2
peso molecular promedio en peso


Explanation:
Buen dia!

Deseo que todo este bien con usted y con tus seres queridos.
Asi lo veo en el contexto que pasaste.

Saludos

Paulo Gasques
Mexico
Local time: 04:28
Native speaker of: Native in PortuguesePortuguese
PRO pts in category: 20
Grading comment
Thanks!

Peer comments on this answer (and responses from the answerer)
agree  Leda Roche
1 hr
  -> Gracias Leda, que tengas un excelente, bendecido y saludable dia
agree  Yvonne Becker: Exactamente
8 hrs
  -> Gracias Yvone, que tengas un excelente, bendecido y saludable dia
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6 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
peso molecular promedio en peso


Explanation:
En polímeros el peso molecular se da como un promedio del peso de los monómeros, como es este caso, o del número de monómeros.

Maria Mercedes Munoz Monge
Spain
Local time: 13:28
Specializes in field
Native speaker of: Native in SpanishSpanish
PRO pts in category: 56

Peer comments on this answer (and responses from the answerer)
agree  Yvonne Becker: Exactamente
8 hrs
  -> Gracias Yvonne
neutral  Neil Ashby: Hi Maria, the weight of the polymers does not involve the weight of the monomers - the monomers no longer exist after polymerisation./It's just the average weight of the polymers... no species just polymers.
16 hrs
  -> Thanks Neil, you are rigth. I meant "species" present in the polymer
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1 hr   confidence: Answerer confidence 5/5
peso molecular promedio ponderal


Explanation:



    https://bibliotecadigital.exactas.uba.ar/download/tesis/tesis_n1944_DeMicheli.pdf
Yaotl Altan
Mexico
Local time: 05:28
Native speaker of: Native in SpanishSpanish, Native in ItalianItalian
PRO pts in category: 259
1 corroborated select project
in this pair and field What is ProZ.com Project History(SM)?
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3 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +3
promedio ponderado del peso molecular


Explanation:
Please check out these Malvern (leading manufacturers of particle sizers and zetasizers) websites in English and Spanish. I spent the best part of 3 years working with this machine and there are a lot of different ways of expressing particles size distributions.


Batch measurement with cuvette based instruments, such as the Zetasizer series, is an ensemble technique. Therefore the result calculated is the weight average molecular weight of the entire sample measured.
https://www.malvernpanalytical.com/en/products/technology/li...


La medición de lotes con instrumentos basados en cubetas, como la serie Zetasizer, es una técnica de conjunto. Por lo tanto, el resultado calculado es el promedio ponderado del peso molecular de toda la muestra medida.
https://www.malvernpanalytical.com/es/products/technology/li...

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Note added at 3 hrs (2020-04-22 19:48:35 GMT)
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*manufacturer - not manufacturers

--------------------------------------------------
Note added at 3 hrs (2020-04-22 19:49:22 GMT)
--------------------------------------------------

I should give this a confidence of 5 because Malvern are the kings of particle sizers.

Neil Ashby
Spain
Local time: 13:28
Specializes in field
Native speaker of: English
PRO pts in category: 153

Peer comments on this answer (and responses from the answerer)
agree  Paulo Gasques: Que tengas un excelente y bendecido dia.
6 hrs
  -> Thanks Paulo
agree  Chema Nieto Castañón: Ésta es la forma más ajustada de expresarlo en castellano
15 hrs
  -> Thanks Chema, to be honest I was going to immediately agree with Paulo but thought I'd check out Malvern's website... I worked with these damned different averages for years and never realised it was "weighted" as in "ponderado" until now!
agree  Andrea Cerdán Cabrera (X)
1 day 34 mins
  -> Thanks Andrea, appreciate it.
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Reference comments


8 hrs
Reference: http://www.saber.ula.ve/bitstream/handle/123456789/16743/polimeros.pdf?sequence=1&isAllowed=y

Reference information:
A la hora de determinar el peso molecular de polímeros existe el peso molecular promedio en peso y el peso molecular promedio en número

Yvonne Becker
Specializes in field
Native speaker of: Spanish
PRO pts in category: 218
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18 hrs peer agreement (net): +1
Reference: Promedio ponderado del peso molecular (Mw)

Reference information:

the two most common being the number average molecular weight and the weight average molecular weight
(...)
Number average molecular weight, M
The number average molecular weight is defined as the total weight of polymer divided by the total number of molecules.
https://www.doitpoms.ac.uk/tlplib/polymerbasics/mw.php

Weight average molecular weight (Mw) measuring system includes the mass of individual chains, which contributes to the overall molecular weight of the polymer.
https://www.sciencedirect.com/topics/engineering/average-mol...

La medición dio como resultado un promedio numérico del peso molecular (Mn) de 2326 g/mol y un promedio ponderado del peso molecular (Mw) de 3367 ...
http://invenes.oepm.es/InvenesWeb/detalle?referencia=PCT/EP1...


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Note added at 1 giorno 1 ora (2020-04-23 17:37:01 GMT)
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Hi Neil,
For some reason I cannot either comment on someone else's Refs nor answer comments as your own here from my cell phone, so...

I think the interesting point here, as you have already noted, is that the first "weight" is actually "weighted" (ponderado). I still do not know if weight versus weighted is an acceptable term or just a common mistake in English. Probably the first, as it is way too common to be a mistake, and yet...



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Note added at 1 giorno 5 ore (2020-04-23 21:36:17 GMT)
--------------------------------------------------

Aunque tal vez se trate tan sólo de dos formas distintas de expresar la misma idea, en inglés y en castellano después de todo;


Peso molecular promedio en peso. Es el promedio ponderado de los pesos moleculares de los polímeros con base en la fracción másica de los mismos.
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S...

Calcular el peso molecular promedio en peso, el peso molecular promedio en número, la polidispersidad y el grado de polimerización de la muestra inicial.
https://www.google.com/url?sa=t&source=web&rct=j&url=http://...

El peso molecular promedio en peso (Mw) representa el promedio de peso de cada cadena
https://www.google.com/url?sa=t&source=web&rct=j&url=https:/...

PESO MOLECULAR PROMEDIO EN NUMERO = Mn Peso total de las moléculas de la muestra dividido por el número de moléculas.

PESO MOLECULAR PROMEDIO EN PESO = Mw
Es la suma de los productos de cada peso molecular por su abundancia en tanto por uno.

PESO MOLECULAR PROMEDIO VISCOSIDAD = Mv
Peso molecular que tendria una disolución de igual viscosidad con todas las moléculas de igual peso molecular.
https://www.google.com/url?sa=t&source=web&rct=j&url=https:/...


Chema Nieto Castañón
Spain
Native speaker of: Native in SpanishSpanish
PRO pts in category: 44

Peer comments on this reference comment (and responses from the reference poster)
agree  Neil Ashby: There are lots of different ways of representing the distribution of the polymers, it's complicated and depends on what you are interested in. Some use radius, others diameter or volume, etc...
29 mins
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