Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
prooof read my lab on separating sand salt and iron(JUST THE INTRO!)and ideas!!!?
Purpose: In this lab the purpose was to separate iron, salt, and sand from a mixture. You also have to get the closest to what they originally weigh. If you do so and get less than a 10% error you are hired for the job.
Introduction: Sometimes there are solid substance mixtures where you can dissolve certain things they contain but not the others in the mix. This is kind of like sand, salt, and iron. Iron is magnetic, salt can be temporarily dissolved into water but then later on dry out into a solid again, and sand can be separated by a filter. Iron is a malleable, silver-white metallic element. Salt is a product formed by the neutralization of an acid by a base. Furthermore sand is fine debris or rocks, consisting of small usually loose grains. With this information the sum of the mass of each solid should equal the total mass of the original mixture.
Three solids that we can most likely associate with are sand, salt, and iron. One of the biggest jobs is being able to recognize substances and how to separate them precisely. This lab is used to teach the importance of separation and accuracy while doing so. Also to get acquainted with the new lab tools.
2 Answers
- 1 decade agoFavorite Answer
You got REALLY deep with the iron, salt and sand, I'd make NEW paragraphs for each. OR try and separate them into 3 parts...It feels like I'm reading things twice :/
You also had 3 main topics
1.How to separate
2.What it's characteristics are
3. what you're doing in the experiment.
Keep it simple, TO THE POINT and Less words as possible (:
"Also to get acquainted with the new lab tools" Is VERY abrupt and not about the topic.
Other then that :] I'd say you identified the theme and you know what you're trying to say :]
Source(s): I'm gonna actually read over this a couple times... Actually, I might be being a bit strict; I do not know your level of education. Dx - ?Lv 71 decade ago
Introduction: Sometimes, we get mixtures of different, solid substances and wish to separate them as well as possible in order to obtain separate entities of the mixture.
Then by weighing the separated parts, we should have a total mass equal to the mass of the original mixture.
In many cases, at least one of the substances will dissolve in water, like Salt.
Other substances, like Iron, and Sand, are not soluble in water.
Method:
1...Using a strong magnet, draw out the iron from the mixture.
2...Place the remaining mixture in a container of warm water and stir well to dissolve the salt.
3...Using a finefilter paper, pour the sand/solution mixture through the filter to separate the sand.
Wash the filter through with fresh, warm water to remove entrained salt water from the sand.
4...Put the sand filled filter aside and allow the sand to dry.
5...Either leave the water to evaporate from the recovered salt solution or, put the solution througha simple distillation process leaving the dry salt in the flask.
