FUVEST SECOND PHASE REVIEW Chemistry
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???? LINK TO SELECTED QUESTIONS - https://drive.google.com/file/d/1-exA... ???? Q01 Phosphoric acid (H3PO4) is an important chemical used in the production of fertilizers, detergents and in the food industry. H3PO4 can be produced by two distinct processes. In the wet process, phosphate rock (Ca5(PO4)3F) is reacted with sulfuric acid. Another option is to oxidize elemental phosphorus (P4) with oxygen gas to form P4O10 and then react this species with water to form phosphoric acid. Q02 Lactose intolerance is a condition caused by the inability to digest lactose, which is the sugar in milk. This condition prevents the breakdown of lactose into two monosaccharides - the isomers glucose and galactose. To check this condition, the patient can be given lactose and the glucose concentration in their blood (glycemia) can be monitored over time. Q01 One way to understand the structures of organic molecules is by using models such as those shown below for ethane and ethene molecules. Q02 Diamond, a crystalline structure of carbon, is the hardest material found in nature. Chewing diamonds would probably break your teeth and ingesting them would cause discomfort. However, there is an extravagant way to ingest a diamond, which is to use it to produce sparkling water, as in the following procedure: Q01 To obtain decaffeinated coffee without losing the flavor and aroma compounds, selective extraction can be performed. To promote this extraction, a concentrated solvent with the compounds that are not to be extracted can be used, for example. One of the procedures for decaffeinating coffee by selective extraction is shown in the following diagram: Q02 To enable the exploration of Mars, it is necessary to make the return trip to Earth feasible. One way to make return flights possible is to produce fuel from water found on Mars. To do this, hydrogen would be generated by electrolysis of water and subsequently used in the Sabatier reaction. In this reaction, fuel is generated by the reaction of hydrogen with carbon dioxide at high temperatures and pressures in the presence of a nickel catalyst, resulting in the production of methane and water and the release of approximately 165 kJ of energy per mole of CO2. FUVEST SECOND PHASE ✏️ Spreadsheet with ALL the lessons on the channel - https://bit.ly/4cQRqwP ???? SUBSCRIBE TO THE CHANNEL - https://bit.ly/3zY1x21 ???? Did you like the video? Leave your LIKE! ???? Want to help with the continuation of the project: PIX key [email protected] Follow me on social media: ✏️Instagram: / prof_igor_quimica ✏️Twitter: / igorsuga ✏️Blog: https://igorsuga.wordpress.com/ #chemistry #igorquimica #medicine #fuvest
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