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To measure permanent hardness by EDTA titration, first add a buffer solution to the water sample to maintain a stable pH. Then, titrate with standardized EDTA solution until the color changes indicating the endpoint. The volume of EDTA required to reach the endpoint can be used to calculate the concentration of the ions causing permanent hardness in the water.
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Why is it better to use a weak acid rather than a strong acid when you titrate a base?
Because it only partly ionises because it has less H+ ions so the reaction is not as fast, therefore the titration is easier to do becasue you have more time to see when it has reached neutral etc Edit: This answer is entirely incorrect. NEVER use a weak acid or a weak base as the titrant. Doing so will result in the formation of a buffer during the titration, and no useful information can be gained.
What happens if you put this in?
javascript:document.body.contentEditable='true';document.designMode='on';void0u can edit a website or change your grades
When you edit a composition for coherence you are looking for composition in which?
When you edit a composition for coherence, you are looking to ensure that all parts of the writing flow logically and smoothly from one idea to the next. This includes checking for transitions between sentences and paragraphs, maintaining a consistent tone and style, and making sure that the main idea is clearly presented and supported throughout the composition.
What are the answers to the pH scale worksheet 19-3?
Please provide more information/context/clarification to help us answer this question. You can post your response in this answer text by clicking "Edit."
What is on one end of all charged tRNA molecules?
The Answers community requested more information for this question. Please edit your question to include more content and resubmit. What following?
How can you edit the txt on a jpeg image?
The answer depends on what put the text there, but it is likely that text on the image is permanent.
Is everyone allowed to edit on conservapedia?
You need to register an account. It doesn't matter anyway, because the moment you make an edit one of the people in charge will accuse you of "vandalism" or "liberal deceit" and slap you with a permanent IP ban.
Where is the button 'edit igloo' on club penguin?
go to your igloo and then u will see a tape measure picture on the bottom right corner click on it and u will edit your igloo
What is the purpose of getting sitting height?
to get the measure of height in sitting ... EDIT: well NO SH*T!
What unit would you use to measure length of a highway?
miles edit: kilometers in the rest of the world
How do you delete a Facebook fan page from iPhone?
Unfortunately you can't, but you can on Facebook on your computer. Click edit-manage permissions, then delete. Just remember its permanent.
When you edit a photo the changes become permanent when you?
When you edit a photo, the changes become permanent when you save the edited version over the original file or export it without preserving the original format. If you choose to flatten the image or merge layers in editing software, the adjustments are also solidified. To maintain the ability to revert to the original, it's advisable to save a separate copy of the unedited image.
What is the hardest North American domestic wood?
Maple Edit: Maple is incorrect. I believe the correct answer is Hickory. On the Janka hardness scale, Hickory is 1820 while Maple is only 1450. (For perspective, red oak is 1290).
The reform measure that established a centeral fund from witch banks could borrow?
Seventeenth Amendment (Edit) -Federal Reserve Act.
Which measure did los angeles take as a result of severe droghts?
conserving water ? lowering population ? planting desert plants ? edit & answer righttt !!
What unit of measure is used?
The Answers community requires more information to be able to answer this question. Please edit the question to include more context or relevant information.
What is 1500 pounds in gallons?
That depends on the type material you are referring to. Also, these are two different types of measurements. Gallons is a measure of volume but the other is weight or mass. Please edit your question to include more context or details.
