Organic Chemistry Free Online Courses
Introduction:
We make list of some free online courses of organic chemistry. These courses are offered by recognizable institutes and universities.
Organic Chemistry.pk
Organic Chemistry.pk is an online platform where we publish and share reliable content.
Organic Chemistry.pk
Here we also publish our contents in the form of a blog, notes, videos, MCQs, questions/answers, reasons and numerical. If we share other’s content then we will also give credit to the original creator.
Organic Chemistry.pk
The purpose of organic chemistry.pk is to promote free education. Organic Chemistry.pk mainly posts organic chemistry content but other chemistry content may also share with our readers and viewers.
Organic Chemistry.pk
Here you can find free notes, books, and manuals. Our site also has a course section where you find your desired course free of cost. Remember that these courses do not have any certificates. We just make the course content from lecture videos. So you can learn chemistry from basic to a higher level. You can search the chemistry topics, reasons, experiments, numerical, researches, and news in the search bar.
Thursday 10 September 2020
Which are the best organic chemistry books?
Best Organic Chemistry Books
Introduction:
It depends on the course in which you are enroll. Here some books are mentions according the course level. You can finds these books on internet.
Saturday 20 June 2020
Useful Chemistry Blogs
Sometimes you would like to avoid doing work but still love chemistry. For that all-too-often occasion, we’ve curated this list of diverse chemistry blogs to assist you indulge your love of chemistry. Maybe you’ll even learn something.
This list (in no particular order) covers blogs big and little , old and new. We’ve included notes on which are most active and easiest to read or navigate. Everything is hyperlinked to assist you get there quickly and follow these bloggers on social media. Happy reading!
Compound Interest Chemistry Blog
Since 2013 this blog travel by Andy Brunning, a chemistry educator in Cambridge, has been explaining the complex chemistry of real-world problems to the general public using intricate infographics and visual aids. With over 300k likes on Facebook and 70k followers on Twitter (@CompoundChem), audiences have endorsed the accuracy and wonder of his graphic style which makes him altogether one among the elite Science Communicators in all of Chemistry.
Compound interest chemistry blog Link
https://www.compoundchem.com/
Crystals and Catalysts
One of the foremost modern chemistry blogs on this list which will appeal to students and young professionals on their thanks to joining the chemistry community. Blogger Mariam Zaki features a degree in Medicinal Chemistry and translates every new blog post into Arabic to assist share her chemistry blogging to a more diverse audience. Her topics include science communication, science policy in government, chemistry because it applies to every-day health decisions and news from the chemistry community. Mariam’s blog is straightforward to read and written during a conversational tone, plus it’s still very active as of November 2019. confirm to follow her active social media accounts below!
Crystals and catalysts chemistry blog Link
https://www.crystalsandcatalysts.com/ (Twitter, Facebook, Instagram)
Chemistry Hall
This chemistry blog was rejuvenated in 2019 by its owner, a PhD Organic Chemist who goes by the nom de plume “C. Hall”. The format of the location makes it exceedingly easy to seek out posts most relevant to you and it’s written during a conversational and simply digestible way. Post topics include the way to run simple chemistry experiments reception , the simplest chemistry textbooks, breakthroughs in chemistry research and tools for chemists. you'll also follow Chemistry Hall on Twitter for brand spanking new post announcements!
Chemistry Hall chemistry blog Link
https://chemistryhall.com/
Chemical Connections – Blog by Stuart Cantrill
From the chief editor of @NatureChemistry, Stuart Cantrill’s blog “Chemical Connections” meanders through everything a chemist would find interesting on the web . He’s exceptionally active on his Twitter account @StuartCantrill and lots of of his blog posts reflect the goings-on within the social media communities in chemistry. confirm to ascertain his list of chemist accounts on Twitter! He also delves into the chemistry of creating gin and chemistry-focused perspectives on other every-day topics during a natural and easy voice.
https://stuartcantrill.com/
Picture It Chemistry
This unique blog makes some extent to point out images of foods and products (photographed in their lab!) which contain the molecules being discussed. travel by the University of Bristol School of Chemistry, they delve into historical anecdotes of the molecules and the way their chemical properties affect the taste, color, nutrition and hazards of the ultimate product. they are doing a superb job of citing journal articles and communicating the science behind the properties during a semi-technical voice. My favorite part is their molecules within the kitchen page! they're very active as of January 2020 so confirm to also follow on Twitter @PictureItChem!
Picture it chemistry blog Link
https://chempics.wordpress.com/
The Chronicle Flask
In this blog dating back to 2013, chemist Dr. Kat Day (@chronicleflask on Twitter, Facebook) takes on popular trends and news headlines that are either using questionable science claims or sensationalizing good science. She does an excellent job going after relevant topics to the every-day reader including super-slippery toilet coatings, reusing water bottles and homeopathic consumer products. Her amusing and skeptical tone makes it easy to read and can keep you clicking backwards through the archives to catch up!
The chronicle flash chemistry blog Link
https://chronicleflask.com/
Doctor Galactic & The laboratory coat Cowboy
A fun blog by an editor at the Royal Society of Chemistry that covers many random topics on the chemistry community. “Doctor Galactic” holds challenges and events on social media for prizes together with the main chemistry journals and magazines. It’s not as active as previously, but it’s a minimum of worth following @RealTimeChem on Twitter so you'll find any new challenges, games or announcements.
Doctor Galactic and therefore the laboratory coat cowboy blog Link
https://doctorgalacticandthelabcoatcowboy.com/
A Chat and Waffles Chemistry Blog
A thorough chemistry blog started in 2006 with many various contributors from the chemistry blog-o-sphere. Recent posts by Mark Lorch (@mark_lorch on Twitter) include a tremendous table explained using only the 1000 commonest words within the English and the way thermite has been utilized in consumer products. the location layout may be a little clunky and difficult to navigate but the content is interesting and informative.
http://www.chemistry-blog.com/
ChemJobber - Chemistry Job Finding Blog
A blog dedicated to helping chemists find jobs also brimming with other helpful blog posts and news from the chemistry world. Not only are you able to find leads for job postings, but also statistics of the work market and even a special section for chemistry post-doc positions. the location is fairly easy to navigate given the large number of posts and is extremely active as of January 2020. confirm to follow along on Twitter @ChemJobber as well!
ChemJobber chemistry job posting blog Link
https://chemjobber.blogspot.com/
Chem-bla-ics Blog: Using computers to unravel chemistry problems
Chemblaics (pronounced “chem-bla-ics”) is that the science that uses computers to unravel problems in chemistry, biochemistry and related fields using open source software, open data, and open standards, making experimental results reproducible and validatable. this is often a really niche but interesting blog to show you to a field you'll not are conscious of . If you enjoy chemistry, data science, programming and modeling, this might be the proper field for you.
https://chem-bla-ics.blogspot.com/
Organic Chemistry Portal
An impressive collection of thousands of technical posts outlining chemistry reactions from recently published papers. this is often a significant blog for serious organic chemists in research and industry. They also include chemistry job postings within the sidebar and a solid collection of other resources from round the internet. Highly active and up-to-date as of January 2020. They even have alittle Twitter and large Facebook page.
Organic chemistry portal blog page link
https://www.organic-chemistry.org/
Chemical Forums
Not a blog per-say, but an excellent place to read and discuss chemistry with others from round the world. Some threads are focused on homework help for every chemistry subject but others are for those practicing chemistry and exchanging technical knowledge.
https://www.chemicalforums.com/
Med-Chemist – Blog on Quintessential Medicinal Chemistry
If you’re pursuing a career in medicinal chemistry, this is often the foremost focused blog for you. It’s an easy 1-page scrollable feed that specialize in news in medicinal chemistry, especially FDA approvals and insight on the drug’s chemistry and the way it’s effective for every application. Near-daily posts in 2020 will offer you many reading to stay up with current news within the field.
https://www.med-chemist.com/
Chemistry World – Official blog and news of the Royal Society of Chemistry
This is a huge high-quality blog and news outlet on everything chemistry. They get contributions from the foremost prominent chemists and chemistry writers within the world. Topics include cutting-edge chemistry news, historical anecdotes, biographies, interesting insight on chemistry in every-day life and even career advice. Definitely follow them on Twitter @ChemistryWorld – one among the most important chemistry accounts alive . You can’t fail with the free content here, but confirm to also spend time on the opposite underrated blogs during this list!
Chemistry world blog Link
https://www.chemistryworld.com/
SPSC Chemistry Lecturer MCQs Test Preparation, Syllabus, and Past Papers. Tips and Tricks for Preparation
 |
| SPSC Chemistry Lecturer Test |
SPSC announces various lecturer jobs. People are interested in these jobs. But candidates have difficulty preparing because the syllabus and previous papers are not easily available on the internet and preparation books are not readily available at all bookstores. This article gives you tips and ideas for preparing for the SPSC test, BS Chemistry syllabus and SPSC Chemistry lecturer's past papers.
Tips and Tricks for the Preparation of SPSC Lecturer Test:
1. BS Chemistry Lectures:
Starts with your BS lectures. Your BS Chemistry
notes are also helpful in preparing the test.
BS lecturers and notes are also available on the Internet. You can read lectures and find numerical solutions. And download lessons and exercises. Chemistry video courses are also available on YouTube. Here we list some reliable online sources that may be useful to you.
i.
Khan Academy: YouTube Videos
2. Internet Sources:
Then you can continue to prepare from the Chemistry
MCQ website which also has the answers.
Some MCQs Websites
v. Oxford University Press
3. Intermediate Chemistry Books:
These books contain the
basics of chemistry that you can ask in MCQ's.
4. Master Level Chemistry Books:
Chemistry books are
also a good tool for preparing chemistry MCQs.
You can download free
chemistry books from here:
5. General Knowledge MCQs Book:
6. Facebook:
Facebook pages and groups are also helpful in
keeping yourself up to date and getting ready content for the SPSC test. Here's
a list of some useful pages:
Facebook
Pages
7. SPSC Preparation Folder:
Create the SSPC
preparation folder on your computer where you can save the MS Word and PDF
files you want. Create your MS Word file where you list short note topics for
your preparation.
8. Handout:
Make a handout of all topics. Make it into bullet
points.
Short Note:
1.
Online MCQs are a great strategy for active and lazy
candidates.
2.
Create a schedule and checklist to complete the syllabus
3.
Create a note
in the bullet points
4.
Foreign author books are a good source.
Section:
Section:
Section:
1.
Chemistry
Section MCQs (80)
2.
General Section
MCQs (20)
Chemistry Syllabus:
This is general syllabus for chemistry
You can simply prepare
for any type of test through your BS Chemistry syllabus.
HEC Syllabus
Past Papers:
BS, M.Phil and PhD Chemistry Admissions in Karachi Universities
 |
| BS, M.Phil and PhD Admission |
Universities for Chemistry Admission in Karachi
List of Universities in Karachi
A total of five universities offer admission to chemistry in Karachi.
1. NED
NED offers admission in BS and MS in industrial chemistry.
The
Department offers admission in BS, Mphil and Ph.D. in chemistry
(Organic, Inorganic, Physical and Analytical Chemistry) and applied
chemistry.
ICCBS offers admission to Mphil and Ph.D. in chemistry (Organic, Inorganic, and Analytical Chemistry) and applied chemistry.
JUW offers admission in BS, Mphil and Ph.D. in chemistry (Organic, Inorganic, Physical and Analytical Chemistry).
FUU offers admission in BS, Mphil and Ph.D. in chemistry (Organic, Inorganic, Physical and Analytical Chemistry).
AIOU offers admission in BS, Mphil and Ph.D. in chemistry (Organic, Inorganic, Physical and Analytical Chemistry).
NTS GAT (General) MCQs Test Preparation for M.Phil Admission
 |
| NTS GAT General Test |
GAT (General) Test Preparation
NTS (National Testing Service) takes GAT (Graduate
Assessment Test) General test six times for MS and Mphil admission in
a year. Their result remains valid for two years. Candidates with sixteen years
of education are eligible for the test.
After
passing the exam, you can take admission only in those universities which give
admission on NTS test based. Before applying for the NTS test you should know the
university admission criteria.
Federal
Urdu University, NED University and Jinnah University for Women University give
admission on NTS test based. While Karachi University does not offer admission on
NTS test based.
MCQs Test Preparation:
4. GRE
Websites
1. Educated.pk
Sunday 7 June 2020
Thursday 14 May 2020
Grapefruit | Chemistry Review
GENERAL INFO
Grapefruit (Citrus paradisi) was discovered in Barbados in the 18th century. Many botanists think the grapefruit was the result of a natural cross breeding which occurred between the orange and the pomelo, a citrus fruit that was brought from Indonesia to Barbados in the 17th century. Its current name alludes to clusters of the fruit on the tree, which often appear similar to grapes.
NUTRITIONAL INFO
Grapefruit is very low in calories (42
Kcal/100g). It is rich in dietary insoluble fiber
pectin, which promote intestinal health and reduce blood cholesterol levels. It is a good source of vitamin A (about
1150 IU per 100g) and Vitamin C (about 52% of DRI) which are important for skin
health and immune system. Grapefruit is very rich in potassium.
Potassium is an important component of cell and body fluids, helps controlling
heart rate and blood pressure.
It contains bioactive compounds such as naringenin,
beta-carotene, xanthin and
lutein. Studies suggest that these compounds have antioxidant properties and
are essential for vision. Red varieties of grapefruits are
especially rich in the most powerful flavonoid and lycopene. Studies have shown
that lycopene protects skin damage from UV rays, and offers protection against
prostate cancer. It contains moderate levels of B-complex
group of vitamins such as folate, riboflavin, pyridoxine, and thiamin in
addition to some resourceful.
NARINGENIN: THE MOST ABUNDANT BIOACTIVE IN GRAPEFRUIT
Grapefruit is one of the best sources of
the flavonoid and naringenin. It
is a primary bioactive compound in grapefruit. 100 g of grapefruit contains on average
30-40 mg of naringenin
(compared to 15 mg in oranges and 3mg in limes and cherry tomatoes). Only 15-25% of the naringenin is
absorbed in the GI.
Naringenin Health Benefits:
Strong antioxidant activities (important
for cellular health)
Reduce inflammatory processes in the body. Prevention and treatment for type 2
diabetes. May help in prevention of certain types
of cancer (ex: colon cancer, lung cancer). Helps increase good cholesterol and lower
bad cholesterol (important for cardio-vascular health. May help to slow down the spread of
Hepatitis C virus.
Naringenin
was shown to improve insulin signaling and sensitivity thus promoting the
cellular actions of insulin in adult male rats. This is research showing the
potential of naringenin on Metabolic Syndrome and Diabetes.
As
little as 200 ml (7 fluid ounces) of grapefruit juice has been found to
interact with some medications making them harmful.
Tuesday 12 May 2020
Types of Titration
1. Aqueous Titration:
Neutralization
Reaction or Acid-Base Titration: It involves the titration of either acid with base (pH
increases) or base with acid (pH decreases). It is of two types:
• Acidimetry: It is a measurement
of the quantity of base by titration with a suitable standard acid (example:
potassium hydrogen phthalate, oxalic acid, benzoic acid)
• Alkalimetry: It is a measurement
of the quantity of acid by titration with suitable standard bases.
Examples
of Aqeous
Titration of Organic Compound:
Titration of Monoprotic Organic Acids with NaOH (strong Base)
• Titration
of benzoic acid with NaOH
• Titration
of acetic acid with NaOH
2. Oxidation-Reduction Titration:
Example: Determination of
Vitamin C Concentration by Titration (Redox
Titration Using Iodine Solution)
Organic Compounds
which generate free radical ions:
Compounds which does not contain electroactive substituents (Cation generation)
• Aromatic
Hydrocarbons example: except benzene, radicals ions have been obtained from diphenyl and stilbene
• Heterocyclic
compounds example: nitrogen heterocylces example pydridazine, tetrazine
Compounds contating electroactive substituents (Anion generation)
• Quinone
• Aromatic
carbonyl compounds
• Carboxylic
acid derivative
• Amines
• Nitrile
Electrochemical
Methods in Organic Chemistry are used for:
• Oxidation and Reduction of organic compounds
3. Non-Aqueous Titration
Acidimetry in
Non-aqueous Titrations: It
can be further sub-divided into two heads, namely:
•Titration
of primary, secondary and tertiary amines with standard perchloric acid , and
•
Titration of halogen acid salts of bases.
Alkalimetry in
Non-aqueous Titrations:
titration of acidic substances
•Factors
for performing non-aqeous titration: If
•Reactant
is insoluble in water,
•Reactant
is reactive with water
Factors: for performing non-aqeous titration: If
•Reactant
is insoluble in water,
•Reactant
is reactive with water
Solvents
Examples:
Glycerin, Polyethelene glycol, alcohol
Measuring the Endpoint or Equivalence of a Titration
•Indicator:
•pH
Indicators
•Potentiometer
•pH
meter
•Conductivity
•Color
change
•Isothermal
titration calorimeter
•Thermometric
titrimetry
•Spectroscopy
•Amperometry
Application
Particular
Uses of TItration for Estimation Organic Compounds
Acid–base
titrations
•In biodiesel: waste vegetable oil
(WVO) must be neutralized before a batch may be processed. A portion of WVO is
titrated with a base to determine acidity, so the rest of the batch may be
properly neutralized. This removes free fatty acids from the WVO that would normally
react to make soap instead of biodiesel.
•Kjeldahl
method: a measure of
nitrogen content in a sample. Organic nitrogen is digested into ammonia with
sulfuric acid and potassium sulfate. Finally, ammonia is back titrated with
boric acid and then sodium carbonate.
•Acid value: the mass in
milligrams of potassium hydroxide (KOH) required to titrate fully an acid in
one gram of sample. An example is the determination of free fatty acid content.
•Saponification value: the mass in milligrams of KOH required to saponify a fatty acid in one
gram of sample. Saponification is used to
determine average chain length of fatty acids in fat.
•Ester value (or ester index): a calculated index.
Ester value = Saponification value – Acid value.
•Amine value: the mass in
milligrams of KOH equal to the amine content in one gram of sample.
•Hydroxyl value: the mass in
milligrams of KOH corresponding to hydroxyl groups in one gram of sample. The analyte is acetylated using
acetic anhydride then titrated with KOH.
Redox titrations
•Vitamin C: Also known as
ascorbic acid, vitamin C is a powerful reducing agent. Its concentration can
easily be identified when titrated with the blue dye l.
Miscellaneous
•Karl Fischer titration: A potentiometric method to analyze
trace amounts of water in a substance. A sample is dissolved in methanol, and
titrated with Karl Fischer reagent. The reagent contains iodine, which reacts
proportionally with water. Thus, the water content can be determined by monitoring
the potential of excess iodine.
Posts
