استاذ مساعد قسم الكيمياء كلية العلوم بالزلفي
1.روابط ومواقع هامة
ويكيبيديا:
http://ar.wikipedia.org/wiki/%D8%A7%D9%84%D8
2.موقع قوقل للترجمة:
http://translate.google.com/?hl=ar#en|ar|
-موقع كتب كيميائية الكترونية:
http://www.e-booksdirectory.com/listing.php?category=152
-موقع chemweb:
_موقع للبحث عن الكتب في قوقل :
http://books.google.com/bkshp?ie=UTF-8&oe=UTF-8&hl=en&tab=wp&q&safe=active
_الكيمياء التحليلية:
http://www.chemistryguide.org/analytical-chemistry.html
_اموسوعة الكيميائية:
http://www.chemistryguide.org/chemical-encyclopedias.html
_الكيمياء غير العضوية :
http://www.chemistryguide.org/inorganic-chemistry.html
_الكيمياء الفيزيائية:
http://www.chemistryguide.org/physical-chemistry.html
_الكيمياء العضوية :
http://www.chemistryguide.org/organic-chemistry.html
_الكيمياء العامة :
http://www.chemistryguide.org/general-chemistry.html
_الكيمياء الخضراء :
http://www.chemistryguide.org/environmental-chemistry.html
_كيمياء البوليمرات :
http://www.chemistryguide.org/polymer-chemistry.html
_تاريخ الكيمياء :
http://www.chemistryguide.org/chemistry-history.html
_الجدول الدوري للعناصر :
http://www.chemistryguide.org/periodic-table-of-elements.html
_برامج كيميائية :
http://www.chemistryguide.org/chemical-software.html
_كيمياء عضو معدنية :
http://www.chemistryguide.org/organometallic-chemistry.html
_قاموس الكيمياء :
http://www.chemistryguide.org/chemical-glossaries.html
_المجلة العربية للكيمياء :
http://colleges.ksu.edu.sa/Arabic%20Colleges/CollegeO
:computational chemistry program_
http://www.ccl.net/chemistry/links/software
_اتحاد الكيميائيين العرب :
_الجمعية الكيميائية الامريكية:
http://portal.acs.org/portal/acs/corg/content
:chemistry for all_
http://chemico.phpnet.us/sit.htm
_الجمعية الملكية للكيمياء:
تابع اخبار الجامعة على الفيس
https://www.facebook.com/majmaahunivers
عمادة القبول والتسجيل
http://mu.edu.sa//sites/default/filel
جهاز الطرد المركزي (centrifuge) :
جهاز قياس الرقم الهيدروجيني (pHmeter)
A volumetric flask is a piece of laboratory glassware that is used to prepare a chemical solution. It is used to make up a solution to a known volume. Volumetric flasks measure volumes much more precisely than beakers or erlenmeyer flasks. A volumetric flask is labeled with
the accuracy of the measurement it can deliver.
A volumetric flask is characterized by having a bulb and a long neck. Most volumetric flasks have a flattened bottom so that they can be set onto the lab bench, though some volumetric flaskshave rounded bottoms.
How to Recognize a Volumetric Flask
A Buchner flask may also be called a vacuum flask, filter flask, side-arm flask, or Kitasato flask. It is a thick-walled Erlenmeyer flask that has a short glass tube and hose barb on its neck.
A Buchner funnel may be placed on top of a Buchner flask (filter flask) so that a vacuum may be used to separate or dry a sample.
A separating funnel (also called a separation funnel) is a piece of laboratory equipment made mostly of glass and is used to separate two liquids that usually are very hard to separate, for example, Oil and Water (immisable)
Distillation is a widely used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. To separate a mixture of liquids, the liquid can be heated to force components, which have different boiling points, into the gas phase. The gas is then condensed back into liquid form and collected. Repeating the process on the collected liquid to improve the purity of the product is called double distillation. Although the term is most commonly applied to liquids, the reverse process can be used to separate gases by liquefying components using changes in temperature and/or pressure.
