QUE SIGNIFIE LITMUS TEST EN ANGLAIS
Tournesol
Litmus est un mélange hydrosoluble de différents colorants extraits de lichens, en particulier Roccella tinctoria. Il est souvent absorbé sur du papier filtre pour produire l'une des plus anciennes formes d'indicateur de pH, utilisé pour tester les matériaux pour l'acidité. Le papier de tournesol bleu devient rouge dans des conditions acides et le papier de tournesol rouge devient bleu dans des conditions basiques, le changement de couleur se produisant sur la plage de pH de 4,5 à 8,3 à 25 ° C. Le papier neutre neutre est pourpre. Litmus peut également être préparé comme une solution aqueuse qui fonctionne de manière similaire. Dans des conditions acides, la solution est rouge et, dans des conditions basiques, la solution est bleue. Le mélange au riz a le numéro CAS 1393-92-6 et contient 10 à 15 colorants différents. La plupart des composants chimiques du tournesol sont vraisemblablement les mêmes que ceux du mélange apparenté connu sous le nom d'orcein, mais dans des proportions différentes. Contrairement à l'orcéine, le constituant principal du tournesol a un poids moléculaire moyen de 3300. Les indicateurs de l'acide-base sur le tournesol doivent leurs propriétés à un chromophore de 7-hydroxyphénoxazone. Certaines fractions de tornades ont reçu des noms spécifiques tels que l'érythrrolitine, l'azolitmin, la spaniolitmin, la leucoorcéine et la leucazolitmin.
définition de litmus test dans le dictionnaire anglais
La définition du test décisif dans le dictionnaire est un test pour établir l'acidité ou l'alcalinité d'un mélange. Une autre définition du test décisif est une indication critique du succès ou de l'échec futur.
MOTS EN ANGLAIS EN RAPPORT AVEC «LITMUS TEST»
litmus test ·
litmus ·
test ·
obama ·
mary ·
politics ·
military ·
chemistry ·
strips ·
email ·
paper ·
water ·
soluble ·
mixture ·
different ·
dyes ·
extracted ·
from ·
lichens ·
especially ·
roccella ·
tinctoria ·
often ·
merriam ·
webster ·
something ·
such ·
opinion ·
about ·
political ·
moral ·
issue ·
make ·
judgment ·
whether ·
someone ·
acceptable ·
basicity ·
using ·
uses ·
single ·
prompt ·
decision ·
word ·
hopefully ·
become ·
wiktionary ·
good ·
reasons ·
early ·
membership ·
currency ·
union ·
being ·
european ·
matthew ·
cooper ·
candidates ·
define ·
alkalinity ·
crucial ·
revealing ·
which ·
there ·
decisive ·
factor ·
noun ·
cambridge ·
university ·
press ·
audio ·
7 CITATIONS EN ANGLAIS AVEC «LITMUS TEST»
Citations et phrases célèbres avec le mot
litmus test.
I won't use abortion as a litmus test with a pro-choice individual. Someone that is an activist on the abortion issue, I think, goes outside the pale, and I cannot support an activist on the abortion issue.
I come to urge my party to be open to debate and discussion; to move away from a lock-step litmus test which advocates abortion on demand in an effort to reach a broader national consensus.
A lot of bad music sells a million copies; I don't think it's a good litmus test for whether things are going well.
The litmus test for whether I want to take on a role or not is usually fear. If I'm afraid of it, then I want to do it.
I think that's the true litmus test for someone who has become closer to Jesus: their heart is more loving, accepting, childlike, less believing that they have all the answers and more believing in Him.
Perhaps measuring animal intelligence by comparing it to human intelligence isn't the best litmus test.
One congressman asked 'I just want to know if you've accepted Jesus Christ as your personal savior. The minister looked stunned, and he said 'no.' The whole table almost fell on the floor. The congressman was quite serious. That was his litmus test.
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «LITMUS TEST»
Découvrez l'usage de
litmus test dans la sélection bibliographique suivante. Des livres en rapport avec
litmus test et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
No
Litmus Test: Law Versus Politics in the Twenty-first Century
From Bush v. Gore to the war in Iraq, No Litmus Test demonstrates that even when the law provides no clear-cut right answers, it offers tools for distinguishing good arguments from bad ones.
2
A
Litmus Test Case of Modernity: Examining Modern ...
This volume offers the insights of Baltic and Western European scholars into present socioeconomic, migration, identity, gender, race, media, and historical memory issues in the Baltic States.
3
The Reflective Educator’s Guide to Professional Development: ...
THE WONDERING LITMUS TEST Chemists use a litmus test to determine if a
substance is an acid or a base. Coaches use this litmus test to determine if the
statement of a potential Figure 3.4 Reflective Guide REFLECTIVE GUIDE
Learning ...
Nancy Fichtman Dana, Diane Yendol-Hoppey,
2008
4
Journal of Agricultural Research
Levulose. .do. Maltose. .do. Mannite .do. Glycerin . .do. Dextrose. Galactose. do.
Saccharose. , .do. Clouded in open end and outer two-thirds of U tube; sharp line
of demarcation; perfectly clear in closed end; no pellicle; litmus test, alkaline.
5
Cornell Reading Courses
TEE LITMUS TEST The litmus test has been much used and from time to time has
been rather thoroly discredited. But in the end, if certain rather simple details are
observed it is a convenient field test for acid soils. It is not a quantitative test in ...
6
See You at the Finish Line
And so I ask you: in life, do your actions pass the litmus test? According to
Merriam-Webster's Collegiate Dictionary, the phrase litmus test is defined as “a
test in which a single factor (as an attitude, event or fact) is decisive.” It is a test
that relies ...
7
Putting Information First: Luciano Floridi and the ...
Of course, though this has to be true for Chris to learn by the litmus test that it is
an acid in the beaker, the turning pink of the litmus paper does not tell Chris that
there are no nonacids in his portion of the world capable of turning litmus paper ...
8
Journal - American Society of Agronomy
This would naturally lead to many variations in the test and many conflicting
opinions as to its interpretations. Here is what some of the authorities say for and
against the litmus test : There is still a more definite test for soil acidity which may
be ...
9
Journal of the American Society of Agronomy
Here is what some of the authorities say for and against the litmus test: There is
still a more definite test for soil acidity which may be made on the farm—the
litmus paper test. (P. E. Brown, Iowa, in speaking of other tests.) In case of soils
slightly ...
DIFFICULTIES WITH LITMUS TEST. There are some objections to this litmus
paper method, the chief one being the difficulty of reading the test correctly. Some
soils have the power of removing the blue coloring from the litmus paper and ...
Iowa Agriculture and Home Economics Experiment Station,
1913
10 ACTUALITÉS CONTENANT LE TERME «LITMUS TEST»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
litmus test est employé dans le contexte des actualités suivantes.
Virginia Tech's Ideological Litmus Test for Tenure
Seven years ago the office of the provost sent out a memo imposing an ideological litmus test for faculty members seeking promotion or tenure. «Reason, juil 15»
If the Bible has a litmus test… | Baptist News Global Perspectives …
If the bible has a litmus test…and it's an if. A big if. I hesitate and say “if” because terrible acts have been committed more than once in history ... «Baptist News Global, juil 15»
Saakashvili's New Deputy Fails Ukrainian Litmus Test, Gets Cool …
The question is a sort of litmus test in Ukrainian politics, where media coverage and political discourse appears to hinge on the idea that ... «Sputnik US, juil 15»
Buhari: 33 out of 36 ministerial nominees fail litmus test - Pulse.ng
New reports have indicated that the reason the ministerial nominees has not been released yet is as a result of discrepancies traces back to ... «Pulse Nigeria, juil 15»
Sen. Elizabeth Warren lays out a 2016 litmus test at Netroots | MSNBC
PHOENIX — Sen. Elizabeth Warren jumped into the 2016 race on Friday — not as a candidate, but as a progressive power broker. «MSNBC, juil 15»
Provincial elections litmus test for Mnangagwa camp
The polls will be a litmus test for Vice-President Emmerson Mnangagwa's influence in the party, amid escalating internal fights linked to ... «Zimbabwe Independent, juil 15»
Here's the Litmus Test We Should Be Giving Every Single …
A Christian husband of one and father of four, Scott Morefield's articles have also appeared on WND, Natural News, and many other sites, ... «TheBlaze.com, juil 15»
Sea Eagles facing finals litmus test
Facing a horror month in which they will have their mettle tested by the NRL's best, Manly aren't buying into the buzz about their top eight hopes ... «ninemsn, juil 15»
The Trump Litmus Test
The Trump Litmus Test. Jul 15, 2015 3:04 PM PDT. How the reality TV star's Republican rivals talk about him says a lot about where they stand on the ... «Bloomberg, juil 15»
Thai Defamation Case Seen as Media Freedom Litmus Test
BANGKOK—. In Thailand, a criminal defamation case brought by the Royal Thai Navy against an Australian publisher and a Thai reporter is ... «Voice of America, juil 15»