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17.8 Real World Examples of Equilibria – Enhanced Introductory College Chemistry. Learning Objectives. By the end of this section, you will be able to: Describe examples of systems involving two (or more) simultaneous chemical equilibria. Calculate reactant and product concentrations for multiple equilibrium systems.
- Anne Marie Helmenstine, Ph.D.
- Elements in the Human Body. Your body is made up of chemical compounds, which are combinations of elements. While you probably know your body is mostly water, which is hydrogen and oxygen, can you name the other elements that make you?
- Chemistry of Love. The emotions that you feel are a result of chemical messengers, primarily neurotransmitters. Love, jealousy, envy, infatuation, and infidelity all share a basis in chemistry.
- Why Onions Make You Cry. They sit there so harmless-looking on the kitchen counter. Yet as soon as you cut an onion, the tears begin to fall. What is it in onions that makes them burn your eyes?
- Why Ice Floats. Can you imagine how different the world around you would be if ice sank? For one thing, lakes would freeze from the bottom. Chemistry holds the explanation for why ice floats while most other substances sink when they freeze.
Aug 15, 2015 · There are many examples of chemistry in daily life, showing how common and important it is. Digestion relies on chemical reactions between food and acids and enzymes to break down molecules into nutrients the body can absorb and use.
- Carbohydrates
- Retinal
- Vitamin C
- Oranges, Lemons, and Their Enatiomers
- The Smell of Roses
- Stereomerism and Odor
- Unsaturated Fats
Carbohydrates are the main source of energy for human beings. They are a ubiquitous part of our diet from which we get calories. The term “carbohydrate” comes from the observation that their apparent molecular formula is Cn(H2O)n{C}_{n}({H}_{2}{O})_{n}Cn(H2O)n. For example, in the case of glucose, the molecular formula of C6H12O6{C}_{6}{H}_{12}{...
Have you ever wondered how our eye can change the light photons into a signal that tells our brain the appearance of the object we are watching? Retinal (also known as retinaldehyde) is a chemical called polyene chromophore, which is bound to proteins called opsins and forms the basis of animal vision. It allows certain microorganisms to convert li...
Vitamin C is one of the most vital nutrients for human health. It is necessary for human beings to maintain adequate levels of vitamin C in their body. Not only it prevents scurvy and helps our immune system to function properly, but vitamin C is also an essential nutrient involved in the repair of tissues and the enzymatic production of certain ne...
How can you differentiate between an orange and a lemon when you are blindfolded and not allowed to touch either of them? By the sense of smell, right? There is a common misconception that oranges and lemons smell distinctive because of the presence of two enantiomers of a chemical compound called limonene. This molecule comes in two different chem...
Roses are not only famous for their beautiful appearance but also for the incredible aroma they endure. In fact, William Shakespeare in his famous play Romeo and Juliet quoted, The smell of a rose that we encounter in cosmetics, perfumes, and food additives probably comes from a single species of rose called damask rose. The chemical responsible fo...
Stereomerism is very closely linked to our perception of smell. For instance, the chemical responsible for the minty odor of the spearmint leaves is a stereoisomer of the chemical responsible for the spicy aroma of the caraway seeds. Carvone is a chemical found naturally in many essential oils but is most abundant in the oils from seeds of caraway ...
In chemistry, fats are the ester of fatty acids or a mixture of such compounds. The molecule of a fatty acid consists of a carboxyl group HO(O=)C− connected to an unbranched alkyl group –(CHx)nH({CH}_{x})_{n}{H}(CHx)nH. The difference between saturated and unsaturated fats is that the former only have single bond hydrocarbon chains, while the lat...
- Combustion. You experience combustion reactions when you strike a match, burn a candle, start a campfire, or light a grill. In a combustion reaction, a fuel reacts with oxygen from air to produce water and carbon dioxide.
- Photosynthesis. Plants use a chemical reaction called photosynthesis to convert carbon dioxide and water into food (glucose) and oxygen. It’s a key reaction because it generates oxygen and yields food for plants and animals.
- Aerobic Cellular Respiration. Animals use the oxygen provided by plants to perform essentially the reverse reaction of photosynthesis to get energy for cells.
- Anaerobic Cellular Respiration. Organisms also have ways of getting energy without oxygen. Humans use anaerobic respiration during intense or prolonged exercise to get enough energy to muscle cells.
May 16, 2024 · In this article, we’ll explore some of the ways chemistry impacts our daily lives and examine 12 examples of chemistry in everyday life that you may have never considered.
An example of such heterogeneous equilibrium is the decomposition of calcium carbonate for the production of lime, a process that involves the application of heat. Here the equation would be written thus: CaCO 3 (s) ⇋ CaO (s) + CO 2 (g).
