Is there a name for this algorithm to calculate the concentration of a mixture of two solutions containing the same solute?What is the total concentration (in mol dm−3) of ions in each of the following solutions, assuming complete dissociationReference request for the number of solvents around a soluteFinal concentration calculationWhat solutes will give the largest reduction in volume when dissolved in waterHow to calculate the new concentration of a solution after adding more solute and convert it to ppm?Is there a way to find the mixture type with just the molecular formulas and masses of the solute and solvent?Is there a free online resource where I can get the solubility of a solute in a solvent?Symantics of parts per (million, billion, etc)what is the final concentration of the mixtureCan the solutions for the Briggs Rauscher experiment be made ahead of time and stored?
Reverse int within the 32-bit signed integer range: [−2^31, 2^31 − 1]
Start making guitar arrangements
How could a planet have erratic days?
Loading commands from file
Count the occurrence of each unique word in the file
What does "Scientists rise up against statistical significance" mean? (Comment in Nature)
Lowest total scrabble score
Why electric field inside a cavity of a non-conducting sphere not zero?
How to indicate a cut out for a product window
What is Cash Advance APR?
What does chmod -u do?
Drawing ramified coverings with tikz
What if a revenant (monster) gains fire resistance?
Is it possible to have a strip of cold climate in the middle of a planet?
250 Floor Tower
How do you respond to a colleague from another team when they're wrongly expecting that you'll help them?
How to bake one texture for one mesh with multiple textures blender 2.8
2.8 Why are collections grayed out? How can I open them?
C++ debug/print custom type with GDB : the case of nlohmann json library
Why can Carol Danvers change her suit colours in the first place?
The screen of my macbook suddenly broken down how can I do to recover
Redundant comparison & "if" before assignment
Is this toilet slogan correct usage of the English language?
How do you make your own symbol when Detexify fails?
Is there a name for this algorithm to calculate the concentration of a mixture of two solutions containing the same solute?
What is the total concentration (in mol dm−3) of ions in each of the following solutions, assuming complete dissociationReference request for the number of solvents around a soluteFinal concentration calculationWhat solutes will give the largest reduction in volume when dissolved in waterHow to calculate the new concentration of a solution after adding more solute and convert it to ppm?Is there a way to find the mixture type with just the molecular formulas and masses of the solute and solvent?Is there a free online resource where I can get the solubility of a solute in a solvent?Symantics of parts per (million, billion, etc)what is the final concentration of the mixtureCan the solutions for the Briggs Rauscher experiment be made ahead of time and stored?
$begingroup$
There is an algorithm called "Mischungskreuz" (German for "x of mixing") that is sometimes taught as a shortcut to figure out the following problem:
You have two solutions that contain a solute at different concentrations $c_1$ and $c_2$. At what ratio $V_1/V_2$ do you have to mix them so that the mixture has the desired concentration $c_m$?
For example, let's say you want to make a 22% solution from a 35% and a 15% solution. You write the desired concentration in the center and the available concentrations at the left ends of the "x", and get the ratio of volumes on the right side of the "x" as shown below:
So in this case, mix 7 parts of 35% with 13 parts of 15% solution to get the desired 22%.
Source: https://de.wikipedia.org/wiki/Mischungskreuz
My questions are: Is this method taught outside of Germany, and is there a non-German (maybe English?) name for it?
solutions analytical-chemistry concentration terminology
edited 55 mins ago
andselisk
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
$endgroup$
add a comment |
$begingroup$
There is an algorithm called "Mischungskreuz" (German for "x of mixing") that is sometimes taught as a shortcut to figure out the following problem:
You have two solutions that contain a solute at different concentrations $c_1$ and $c_2$. At what ratio $V_1/V_2$ do you have to mix them so that the mixture has the desired concentration $c_m$?
For example, let's say you want to make a 22% solution from a 35% and a 15% solution. You write the desired concentration in the center and the available concentrations at the left ends of the "x", and get the ratio of volumes on the right side of the "x" as shown below:
So in this case, mix 7 parts of 35% with 13 parts of 15% solution to get the desired 22%.
Source: https://de.wikipedia.org/wiki/Mischungskreuz
My questions are: Is this method taught outside of Germany, and is there a non-German (maybe English?) name for it?
solutions analytical-chemistry concentration terminology
edited 55 mins ago
andselisk
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
$endgroup$
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
1
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago
add a comment |
$begingroup$
There is an algorithm called "Mischungskreuz" (German for "x of mixing") that is sometimes taught as a shortcut to figure out the following problem:
You have two solutions that contain a solute at different concentrations $c_1$ and $c_2$. At what ratio $V_1/V_2$ do you have to mix them so that the mixture has the desired concentration $c_m$?
For example, let's say you want to make a 22% solution from a 35% and a 15% solution. You write the desired concentration in the center and the available concentrations at the left ends of the "x", and get the ratio of volumes on the right side of the "x" as shown below:
So in this case, mix 7 parts of 35% with 13 parts of 15% solution to get the desired 22%.
Source: https://de.wikipedia.org/wiki/Mischungskreuz
My questions are: Is this method taught outside of Germany, and is there a non-German (maybe English?) name for it?
solutions analytical-chemistry concentration terminology
edited 55 mins ago
andselisk
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
$endgroup$
There is an algorithm called "Mischungskreuz" (German for "x of mixing") that is sometimes taught as a shortcut to figure out the following problem:
You have two solutions that contain a solute at different concentrations $c_1$ and $c_2$. At what ratio $V_1/V_2$ do you have to mix them so that the mixture has the desired concentration $c_m$?
For example, let's say you want to make a 22% solution from a 35% and a 15% solution. You write the desired concentration in the center and the available concentrations at the left ends of the "x", and get the ratio of volumes on the right side of the "x" as shown below:
So in this case, mix 7 parts of 35% with 13 parts of 15% solution to get the desired 22%.
Source: https://de.wikipedia.org/wiki/Mischungskreuz
My questions are: Is this method taught outside of Germany, and is there a non-German (maybe English?) name for it?
solutions analytical-chemistry concentration terminology
solutions analytical-chemistry concentration terminology
edited 55 mins ago
andselisk
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
edited 55 mins ago
andselisk
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
edited 55 mins ago
andselisk
18.3k656121
edited 55 mins ago
andselisk
18.3k656121
edited 55 mins ago
andselisk
18.3k656121
18.3k656121
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
asked 2 hours ago
Karsten TheisKarsten Theis
3,264538
3,264538
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
1
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago
add a comment |
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
1
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
1
1
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
This is a so-called "Pearson's square" or "Box method" of balancing ratios, originally used extensively in diary industry (at least since 1920s judging from Google Books search).
Earlier the similar approach has been used in sugar industry by using "Cobenz diagrams" aka spider diagrams.
Widely popularized in Soviet books for analytical chemistry at least since 1940s (probably adapted from the German literature as many other tech novelties of that time were), also used in current Russian literature by the names "Метод креста" ("Cross method"); "Конверт Пирсона" ("Pearson's envelope") or "Диагональная схема правила смешения" ("Diagonal mixing rule scheme").
answered 2 hours ago
andseliskandselisk
18.3k656121
$endgroup$
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
);
);
, "mathjax-editing");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "431"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e)
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
elemTop = $elem.offset().top,
elemBottom = elemTop + $elem.height();
if ((docViewTop elemBottom))
StackExchange.using('gps', function() StackExchange.gps.track('embedded_signup_form.view', location: 'question_page' ); );
$window.unbind('scroll', onScroll);
;
$window.on('scroll', onScroll);
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fchemistry.stackexchange.com%2fquestions%2f111440%2fis-there-a-name-for-this-algorithm-to-calculate-the-concentration-of-a-mixture-o%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
This is a so-called "Pearson's square" or "Box method" of balancing ratios, originally used extensively in diary industry (at least since 1920s judging from Google Books search).
Earlier the similar approach has been used in sugar industry by using "Cobenz diagrams" aka spider diagrams.
Widely popularized in Soviet books for analytical chemistry at least since 1940s (probably adapted from the German literature as many other tech novelties of that time were), also used in current Russian literature by the names "Метод креста" ("Cross method"); "Конверт Пирсона" ("Pearson's envelope") or "Диагональная схема правила смешения" ("Diagonal mixing rule scheme").
answered 2 hours ago
andseliskandselisk
18.3k656121
$endgroup$
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
add a comment |
$begingroup$
This is a so-called "Pearson's square" or "Box method" of balancing ratios, originally used extensively in diary industry (at least since 1920s judging from Google Books search).
Earlier the similar approach has been used in sugar industry by using "Cobenz diagrams" aka spider diagrams.
Widely popularized in Soviet books for analytical chemistry at least since 1940s (probably adapted from the German literature as many other tech novelties of that time were), also used in current Russian literature by the names "Метод креста" ("Cross method"); "Конверт Пирсона" ("Pearson's envelope") or "Диагональная схема правила смешения" ("Diagonal mixing rule scheme").
answered 2 hours ago
andseliskandselisk
18.3k656121
$endgroup$
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
add a comment |
$begingroup$
This is a so-called "Pearson's square" or "Box method" of balancing ratios, originally used extensively in diary industry (at least since 1920s judging from Google Books search).
Earlier the similar approach has been used in sugar industry by using "Cobenz diagrams" aka spider diagrams.
Widely popularized in Soviet books for analytical chemistry at least since 1940s (probably adapted from the German literature as many other tech novelties of that time were), also used in current Russian literature by the names "Метод креста" ("Cross method"); "Конверт Пирсона" ("Pearson's envelope") or "Диагональная схема правила смешения" ("Diagonal mixing rule scheme").
answered 2 hours ago
andseliskandselisk
18.3k656121
$endgroup$
This is a so-called "Pearson's square" or "Box method" of balancing ratios, originally used extensively in diary industry (at least since 1920s judging from Google Books search).
Earlier the similar approach has been used in sugar industry by using "Cobenz diagrams" aka spider diagrams.
Widely popularized in Soviet books for analytical chemistry at least since 1940s (probably adapted from the German literature as many other tech novelties of that time were), also used in current Russian literature by the names "Метод креста" ("Cross method"); "Конверт Пирсона" ("Pearson's envelope") or "Диагональная схема правила смешения" ("Diagonal mixing rule scheme").
answered 2 hours ago
andseliskandselisk
18.3k656121
edited 22 mins ago
answered 2 hours ago
andseliskandselisk
18.3k656121
answered 2 hours ago
andseliskandselisk
18.3k656121
answered 2 hours ago
andseliskandselisk
18.3k656121
18.3k656121
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
add a comment |
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
1
1
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
$begingroup$
Very interesting and thanks for sharing this info. I have always been in favor of learning another language besides English for scientific purposes. English is my second language. I am writing one article for the Journal of Chemical Education on the utility of foreign languages in literature search. Your point provides another motivation to finish that article soon.
$endgroup$
– M. Farooq
1 hour ago
add a comment |
Thanks for contributing an answer to Chemistry Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e)
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
elemTop = $elem.offset().top,
elemBottom = elemTop + $elem.height();
if ((docViewTop elemBottom))
StackExchange.using('gps', function() StackExchange.gps.track('embedded_signup_form.view', location: 'question_page' ); );
$window.unbind('scroll', onScroll);
;
$window.on('scroll', onScroll);
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fchemistry.stackexchange.com%2fquestions%2f111440%2fis-there-a-name-for-this-algorithm-to-calculate-the-concentration-of-a-mixture-o%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e)
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
elemTop = $elem.offset().top,
elemBottom = elemTop + $elem.height();
if ((docViewTop elemBottom))
StackExchange.using('gps', function() StackExchange.gps.track('embedded_signup_form.view', location: 'question_page' ); );
$window.unbind('scroll', onScroll);
;
$window.on('scroll', onScroll);
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e)
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
elemTop = $elem.offset().top,
elemBottom = elemTop + $elem.height();
if ((docViewTop elemBottom))
StackExchange.using('gps', function() StackExchange.gps.track('embedded_signup_form.view', location: 'question_page' ); );
$window.unbind('scroll', onScroll);
;
$window.on('scroll', onScroll);
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e)
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
elemTop = $elem.offset().top,
elemBottom = elemTop + $elem.height();
if ((docViewTop elemBottom))
StackExchange.using('gps', function() StackExchange.gps.track('embedded_signup_form.view', location: 'question_page' ); );
$window.unbind('scroll', onScroll);
;
$window.on('scroll', onScroll);
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
$begingroup$
Cute. I never saw that before.
$endgroup$
– MaxW
2 hours ago
1
$begingroup$
Very interesting! I have not seen it any English textbook so far. I am an analytical chemist. Most English books teach the dilution formula or mass balance as CiVi=CfVf. The German mixing cross (if this translation is better of Mischungskreuz) is a short cut to solve two problems. If you check Wörterbuch der Chemie / Dictionary of Chemistry: Deutsch/Englisch - English, it also calls it the dilution formula. books.google.com/…
$endgroup$
– M. Farooq
2 hours ago