IB Chemistry Option D Medicines and drugs D4 pH regulation of the stomach 229 -- 6:14 App IB Chemistry Option D Medicines and drugs D5 Antiviral medications 167 -- 12:26 App IB Chemistry Option D Medicines and drugs D8 Nuclear medicine 110 -- 6:37 App IB Chemistry Option D Medicines ...
In chemical terms, a strong acid is a species that completely dissociates in water to produce a high concentration of hydrogen ions. This means that strong acids fully break down into their constituent ions, releasing all their hydrogen ions (H+) into the solution. As a result, the solution...
Stomach acid (which contains hydrochloric acid) Vinegar (which contains acetic acid) Citric acid (found in citrus fruits) Strong and Weak Acids Acids may be identified as either strong or weak based on how completely they dissociate into their ions in water. A strong acid, such as hydrochloric...
So now it is the time to plan education with an ICT component by which acid rain, stomach acidity or antacids can be simulated and interacted with students. With the aim of developing a teaching/learning experimental chemistry sequence, in this work a research is presented with a ...
(PPIs) are prodrugs that are activated by protonation in the highly acidic environment of the stomach lining. Now, coordination of PPIs to protein-bound zinc ions is revealed as another pathway to PPI activation. Acting as a Lewis acid, the zinc ion facilitates conjugation of the drug to ...
HI hydroiodic acid Ca(OH)2 calcium hydroxide HNO3 nitric acid Sr(OH)2 strontium hydroxide H2SO4 sulfuric acid Ba(OH)2 barium hydroxide The relative strengths of acids may be quantified by measuring their equilibrium constants in aqueous solutions. In solutions of the same concentration, stronger...
We propose explicit and implicit approaches for the teaching of acid-base chemistry based on research into the history and nature of science (NoS). To supp
3.1. Synthesis of Furan Chalcone Molecules 4a–s 3.1.1. Synthesis of 5-aryl-2-furaldehydes Substituted aniline (4.5 g) was dissolved in a mixture of conc. hydrochloric acid and 20 mL of water under stirring and cooled in an ice bath at −5 °C. A solution of sodium nitrite (2 g ...
or mild stomach, nausea. The overuse of antibiotics in recent years means they're becoming less effective and has led to the emergence of "superbugs”. An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting ...
Proton pump inhibitors (PPIs) are prodrugs that are activated by protonation in the highly acidic environment of the stomach lining. Now, coordination of PPIs to protein-bound zinc ions is revealed as another pathway to PPI activation. Acting as a Lewis acid, the zinc ion facilitates conjugation...