• empressteemah (66)in #steemstem • 4 years ago

  ANALYSING, IDENTIFYING AND SEPARATING SUBSTANCES IV

  Hello, estemmed readers of the HiveSTEM community. It has been a while. It’s so great to be back, not on Steem but Hive. Nice logo and colour mix.In my last post on Steem, I…

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• empressteemah (66)in #steemstem • 4 years ago

  ANALYSING, IDENTIFYING AND SEPARATING SUBSTANCES III

  Today's post will be centred majorly on spectroscopy and chromatography. So, let's get to start with the discussion on nuclear magnetic resonance spectroscopy.NUCLEAR MAGNETIC…

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• empressteemah (66)in #steemstem • 4 years ago

  ANALYSING, IDENTIFYING AND SEPARATING SUBSTANCES II

  Hello, dear readers. I will be starting today's post on the explanation of a special type of spectrometer called The Time-of-flight mass spectrometer.TIME-OF-FLIGHT MASS…

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• empressteemah (66)in #steemstem • 4 years ago

  ANALYSING, IDENTIFYING AND SEPARATING SUBSTANCES.

  Medicines from plants: The first recorded use of plants for medicinal purposes was found on Egyptian papyrus dated about 1500 BC. All over the world, from tribal medicine in…

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• empressteemah (66)in #steemstem • 4 years ago

  ALKANES, THE CAR ENGINE AND ATMOSPHERIC POLLUTION #3

  Carbon dioxide is not the most potent greenhouse gas. If its concentration in the Earth’s atmosphere were to double, the effect would probably be an increase in temperature of…

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• empressteemah (66)in #steemstem • 4 years ago

  ALKANES, THE CAR ENGINE AND ATMOSPHERIC POLLUTION #2

  Hello, great readers. Greetings to the entire steemstem and stem communities. Thanks for the constant support and motivation. Today, I will continue from where I stopped in my…

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• empressteemah (66)in #steemstem • 4 years ago

  ALKANES, THE CAR ENGINE AND ATMOSPHERIC POLLUTION

  Winter smogs and summer smogs: People have become too reliant on the car. In the UK, for example, nearly a quarter of all car trips are less than 2 miles in length. Of all the…

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• empressteemah (66)in #steemstem • 4 years ago

  DIFFERENCES BETWEEN ALDEHYDES AND KETONES

  So far, I have treated carbonyl compounds together and looked at reactions of the C=O functional group in both aldehydes and ketones. They do, however, differ in their…

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• empressteemah (66)in #steemstem • 4 years ago

  ALDEHYDES AND KETONES: Sex Hormones and The Pill

  The most publicized hormones must be progesterone and testosterone. The reason for their fame is sex. Progesterone is the female sex hormone, which prepares the uterus for…

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• empressteemah (66)in #steemstem • 4 years ago

  THE CHEMICAL REACTIONS OF HALOGENOALKANES, CFCS; AND THE NATURE OF OZONE.

  Monohalogenoalkanes are best prepared by replacing the hydroxyl group in an alcohol with a halogen atom. A variety of reagents can be used for this conversion and some of these…

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• empressteemah (66)in #steemstem • 4 years ago

  HALOGENOALKANES: Free Radical Reaction Mechanisms, Fluorination of Alkanes and the Uses of Organofluorines.

  The mechanism of a reaction details the smaller steps in the process that results in the formation of the end products from the starting material. In particular, a mechanism…

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• empressteemah (66)in #steemstem • 4 years ago

  HALOGENOALKANES: Fluorohydrocarbons and Chlorofluorocarbons

  After a serious accident, such as a plane crash in a remote area. Blood transfusions may have to be carried out under difficult conditions, but there may not be time to identify…

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• empressteemah (66)in #steemstem • 4 years ago

  THE CHEMISTRY OF COLOUR: Using A Colorimeter To Determine The Formula Of A Complex Ion.

  A colorimeter is a simple form of visible spectrometer. A fixed band of wavelengths of visible light is selected using a filter. This is then passed through the solution under…

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• empressteemah (66)in #steemstem • 4 years ago

  THE CHEMISTRY OF COLOUR: Colour in Azo Compounds and How Dyes are Stuck onto Textiles.

  The first commercially successful azo dye was Chrysoidine. The azo group, – N=N –, acts as a ‘delocalisation bridge’ between the two benzene rings to form an extended…

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• empressteemah (66)in #steemstem • 4 years ago

  The World of Oil and the Petrochemical Industry #2

  Hello guys. While scrolling through my past posts on steemit, I stumbled across one that really caught my attention. It's a post on The World of Oil and the Petrochemical…

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• empressteemah (66)in #steemstem • 4 years ago

  REACTIVE METAL: The Barium Meal, Common-Ion Effect and The Properties of Aluminium and Boron.

  Doctors often need to use X-rays to look inside the intestine and the stomach for cancers, ulcers and blockages.An image of an X-ray, Pixabay.However, using X-rays to diagnose…

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   610 6
• empressteemah (66)in #steemstem • 4 years ago

  REACTIVE METALS: Solubility of Ionic Salts

  Most ionic salts dissolve in polar solvents such as water. A solvent is a liquid that can dissolve other substances. The most common solvent is water. A solute is the substance…

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• empressteemah (66)in #steemstem • 4 years ago

  THE REACTIVE METALS: Compounds of Alkali Metals and the Thermal Decomposition of Ionic Salts.

  The common feature of almost all compounds of the alkali metals is their high solubility in water. All the compounds of alkali metals are ionic and so they have a giant ionic…

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• empressteemah (66)in #steemstem • 4 years ago

  THE CARBON DIOXIDE SINK AND THE REACTIVE METALS

  Some people think of carbon dioxide as just the greenhouse gas that causes global warming problems, although of course carbon dioxide is essential for life as well. From earliest…

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• empressteemah (66)in #steemstem • 4 years ago

  ALKENES: Hydrogenation, Polymerization and the Manufacture of Poly(chloroethene) from Ethene.

  Alkenes can also undergo other sorts of addition reactions, such as catalytic hydrogenation. In this case, hydrogen is added to the C=C bond to make a saturated compound. The…

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