Practical Applications of ChemistryCHEMISTRY has done a lot of useful things to the environment and to man that some do not really appreciate or care about it. It is everywhere around us. In cooking, washing clothes, cleaning the sink, taking medicine, removing your make-up, and even in the reactions that occur in our body .Why do onions make you cry?, soap cleanse your body?, dishwashing soaps and detergents remove stains in your laundry? Well, Chemistry can explain it all. In preparing meals, Chemistry is always present. When you mince onions tears roll down your face. It breaks Amino acids sulfoxide from sulfenic acids and it mixes with the enzymes that were kept and produces propanethiol S-oxide which stimulates the eyes to get teary. Don't worry it doesn't burn your eyes. Now, the soap. It is a very good emulsifying agent that helps wash away dirt in the body. How does it work? Soap is an emulsifier capable of dispersing one liquid to another immiscible liquid. We know that oil and water cannot be combined or mixed with each other but soap can suspend oil that it removes dirt in the body. That's how amazing a soap is. For the beach-lovers, they always have sunscreen to protect their skin from the harmful UV rays. Did you know that sunblock lotions usually have zinc oxide and titanium? It combines inorganic and organic chemicals to filter light from the sun so that it can also reach even the deepest layers of the skin. That's why many people who are conscious when it comes to skin care use it. Salt is a combination of two very harmful elements, Na and Cl. But when put together, it makes the dish more appetizing and tasty.There are many other things and phenomena in the environment that only Chemistry can explain it. I can't enumerate them all because they are too many to mention. It just prove how broad Chemistry is. Chemistry makes man's life easier and faster.
*CHEMCONNECT IN UNDERSTANDING CHEMISTRY.*DIFFERENT PRACTICAL APPLICATIONS.Chemistry- study of matter. - compositon, structure, properties, energy of a matter. - a physical science that investigates the molecular reasons for the process occuring in our macroscopic world.Chemistry is all around us. Everything is made up of chemistry. Different practical applications like the making of charcoal paste, mango shake, gel, ball made up of floam and clay, tie dye making and many more helped us in understanding chemistry. The ingredients were combined making a new product useful for the people. This chemconnect project really helped us, the III-Hydrogen students, how to apply chemistry in our daily lives. For me, we have to know the basic ingredients so that we will know how could we make a new product with less money and time used. You must also know it's properties, kinds, what or when it is use, it's components and many more. Like if it is a pure subtance or a mixture. Where pure substance is homogenous while mixture is homogenous and heterogenous. The chemconnect project also comes in handy, it's easy and affordable. For example, the tie dye, chemical bonding of molecules are present enabling the dye to be seen in the t-shirt. Chemconnect project which promotes chemistry not only to the students but also the people around the world enable us to know that chemistry occur everywhere. It also reminds us that chemistry is really important. I think it has been or will be a basic need for all the people around the globe.Since, chemistry concerns chemicals, we must also apply safety precautions and handling techniques in doing a laboratory work. But, it doesn't mean that we must have those laboratory apparatus. In our home, we could simply make a new product out of chemicals from another product. That's how chemistry is very necessary.And treasure chemistry because without it, people will not completely survive.
Che-connect project tries to introduce and connects chemistry to every individual and to the community,so we searched and prepared products that are chemistry related and will have a great help for the community.This includes the charcoal paste which is a combination of powdered charcoal and corn starch.We also teach them to make home made gel and hand sanitizer. We also conducted a demo on how to make mango shake, and last but not the least was the tie dye, which is the application of polarity.There are too much practical application about chemistry that we can practice and improve.As we can see, chemistry does not focuses only in chemicals,but has thousands of uses.The discovery of of some thing that is useful to us by the help of chemistry just depends on our own hands. All of the above mentioned product has a great connection with chemistry and much improved by the chem-connect project. This applications are only basic applications of chemistry. But even if it is simple as that, this can help to increase the knowledge of people on how chemistry greatly affect their lives .This also proves that without chemistry some things will be made not possible.This also show that even without noticing,we are already performing and applying chemistry to our daily living. So as a student I can say that we need to engage our selves in promoting chemistry or support activities like chem-connect.
Chem-Connect-PRACTICAL APPLICATIONThe chem connect project help us to leaned new knowledge about how we can applied chemistry in our daily life.In our Past topic,hydrogen bonding help us as a human in our daily living.The following are some of the important roles of hydrogen bond in our life......It plays a very important part in the DNA-molecule. It helps the DNA-molecule retain it's shape.Basically water is pulled up from through the stems to the top of a tree (or other vascular plant) by a combination of factors including evaporation and differential pressure inside and outside of the plant tissue. As one molecule of water moves upward, it tugs on a molecule below it, with which it shares a hydrogen bond. Hydrogen bonding also useful in performing certain chemical reactions to make new products. For some starting materials and reactions, using a hydrogen-bonding solvent speeds up the reaction, while for others it slows it down. This has to do with how the products, reactants and chemical intermediates interact with the solvent. Hydrogen bonding solvents . Some of the most common solvents in an organic chemistry lab are water, methanol and ethanol. The ability of two substances to hydrogen bond also has a tremendous impact on how well one substance can be dissolved into another. In general, nonpolar substances dissolve in nonpolar solvents, while polar solvents are capable of dissolving polar and ionic substances. Ethanol (CH2H6O or CH3–CH2–OH) and water exhibit extensive hydrogen bonding when mixed.This roles can help us in our daily living especially on how we can make our self more productive,,,and if we can make it,,then we are having Practical applications in which we can use it for our life to be better. Without knowing it,,maybe we can earn money using the knowledge of Chemistry..
We are veyr thankful that we are part of this Project. We are free from ignorance and the things that make us a human to live.There are many things i learned in this project,,that there are many ways to earn money,,especially if you study chemistry. There are many important things that i learned. That chemistry isn't all about those periodic tables and formulas that make us to think hard, it isn't a boring subject that we can sleep during the lesson. It is all about the joy,discovering and exploring life. It is about how we can use simple things ans things that surrounds us in earning some money.There are many things i learned and one of it is that as a teenager, i can be a part of an improving and developing community, that chemistry can help us to live happier, to live longer for us to discover and explore more about life.Thank you Mr. Ronaldo Reyes, our chemistry teacher ^_^.......
We are happy to be a part of this project. We learn more about chemestry and it als helps to love chemestry more.there are many things that I learn. About the families, block, period and many more about the elements in the periodic table. I also learn about the bonds the weak forces and the molecular geometry of each molecules. I enjoy also the building of the molecular geometry of any molecule. I also enjoy doing experement discover more things and made new things that can use in our daily life. I made a lot of fun in this project thank you sir.God bless and ihope this project can help more people in the community.Thank toy sir for this wonderful project.
Practical application of chemistry:My Own Homemade GelMaterials:Salt , Water ,Shampoo , Container ,and a spoonProcedures:1. Put some shampoo and water to the container and mix it.2.Then , add some salt to it and mix it.3.Your Homemade Gel is done!We put salt to the mixture of water and shampoo so it will not trigger some corrosive chemicals present in the shampoo.I only learned this gel after i learned how Salt dissolve in Water but in this gel you will notice that it dont have any measure because i accidentally mix the shampoo to the mixture of water and salt .Chem-connect really help me in my everyday life not only on school but also in my home and in my community.I am happyto be part of this project.Thank You!
As a student of tabaco national high school I learn more concept about chemistry.Even though there is more things to specified,It is more enjoyable.Like I learn about physical and chemical change.here I will share to you: Physical change-It affect the form of a chemical substance but not it's chemical composition. -used to separate mixtures into their component compound,but not usually be used to separate compounds into chemical elements or simpler compoundsChemical change-occur when a substance combines with another to form a new substance called synthesis or alternatively decomposes into two or more different substancesIndicators of chemical change:1.change of odor2.change of color3.change of temperature4.change of formEx.paper turn into ash5.light,heat,and sound given off6.formation of gases7.formation of precipitate8.decomposition of organic matterEx.chopping of onion Rotting of food And these changes helps and give guide for sensible things happened in our country
FACTORS AFFECTING THE RATE OF A CHEMICAL SUBSTANCE1.The collisions must be of enough enrgy to overcome the energy barrier called the ACTIVATION ENERGY2.When particles collide,pressure is createdActivation energy-minimum energy needed to burn substance If there were no such thing as activation energy life would be difficultFor example:gasoline for your car would ignite as soon as it came into contact with air you would burst into flame. 2 product of combustion:1.carbon dioxide2.waterHere are some terms to be remember:ACTIVATED INTERMEDIATE-to enhance chemical reaction depend when it is low or high substanceRATE OF CHEMICAL REACTION is speed in which the reaction proceed-it makes the rate of pruduct which can decrease or increaseFACTORS:1.CONCENTRATION-the higher the concentration,the faster the rate of reaction because if one solution is concentrated there is a presence of particles and the frequent collision of particles speeds up the chemical reactionFor example:in washing clothes,when you put zonrox on the part which have dirt,there is a fast reaction occur because it is more concentrated while using only water in removing stains2.TEMPERATURE-the higher the temperature,the faster the reaction because they posses higher kinetic energy and move randomly in any direction3.SURFACE AREA-the greater the surface area the faster the rate of reaction because the particles are scattered and the tendency they can collide with other particlesEx:sawdust-it is smaller pieces and can react easily with oxygen in air4.CATALYST-a substance that increases the rate of reaction without consuming itselfEx:meat and papaya and papaya contains catalyst called PAPAIN that fast to become smooth the meatTHE HIGHER THE ACTIVATION ENRGY THE HIGHER THE CATALYST5.INHIBITOR-a substance that stops or slows down the chemical reactionApple turns into brown when chopped because the oxygen react with substance in apple in process of oxdation and the apple oxydized
Chemconnect project:here am i again,I am very to be part of this product and it also let someone to love more chemistry yet difficult but enjoyableIt includes difficult terms and formulas like the mole concept,the counting unit.Ex:pare of shoes-1 pcs. Dozen eggs-12 pcs.SI unit for the amount of substance which is equal to 6.02 x (10) raise to twenty third powerAtom- elementIon-chargeMolecules-molecular substanceIon pair-ionic substanceFormula:No.of moles=no of particles out of NThats all....And thank you sir.(MR.RONALDO REYES)for teaching us.
I learned several things in chemistry.Our Chemistry teacher Ron the chemist -Mr. Ronaldo Reyes taught us different applications in chemistry.One time he said that water is a chemical.And what flash in my mind is that water is dangerous because of the word (chemical).In my past schoolings,I already put in my mind that all chemicals are dangerous but because of our great chemist teacher, I learned that not all chemicals are dangerous infact their helpful to our daily lives.Our teacher also taught us kinds of dangerous mixtures.He told us several things that are commonly encountered in our daily living. Like in cleaning C.R., windows and others.Most important is the mixing stuff. He told us different chemicals that are very dangerous when mixed.For example: Muriatic acid + chlorox = hazardous substance/ dangerous House hold bleach + acid =chloroamine also dangerousIn the first example, the effects are:watery itchy eyesiritate the throatburns the skinSecond example:chest painiritation to nose and eyes pneumoniaand the most dangerous effect is that it may caused fluid in the lungsThese things absolutely helped me in my daily living and Im glad of sharing these stuffs in my fellow friends.Im very thankful of being a part of this and Im also very thankful for the outstanding movements of my teacherMr. Ronaldo Reyes . :))-Onin Vincent Borlasa III-Hydrogen Blogger
That`s right!! Chemistry help us to determine harmful substance and their effects on human and in the environment even though It change harmful substance to useful ones.
These are the thins i can add base on my understanding in our lesson in physical and chemical change.Chemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. These changes are chemical: • iron rusting (iron oxide forms) • gasoline burning (water vapor and carbon dioxide form) • eggs cooking (fluid protein molecules uncoil and crosslink to form a network) • bread rising (yeast converts carbohydrates into carbon dioxide gas) • milk souring (sour-tasting lactic acid is produced) • suntanning (vitamin D and melanin is produced) Physical change rearranges molecules but doesn't affect their internal structures. Some examples of physical change are: • whipping egg whites (air is forced into the fluid, but no new substance is produced) • magnetizing a compass needle (there is realignment of groups ("domains") of iron atoms, but no real change within the iron atoms themselves). • boiling water (water molecules are forced away from each other when the liquid changes to vapor, but the molecules are still H2O.) • dissolving sugar in water (sugar molecules are dispersed within the water, but the individual sugar molecules are unchanged.) • dicing potatoes (cutting usually separates molecules without changing them.) Classification of real processes can be tricky. Complex changes can be broken down into many simpler steps. Some of the steps are chemical and others are physical, so the overall process can't cleanly be placed in either category. For example, boiling coffee involves chemical change (the delicate molecules that give coffee its flavor react with air and become new, bitter-tasting substances) and physical change (the water in the coffee is going from liquid to gaseous form).
Six Types of chem. reactionChemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. These changes are chemical: • iron rusting (iron oxide forms) • gasoline burning (water vapor and carbon dioxide form) • eggs cooking (fluid protein molecules uncoil and crosslink to form a network) • bread rising (yeast converts carbohydrates into carbon dioxide gas) • milk souring (sour-tasting lactic acid is produced) • suntanning (vitamin D and melanin is produced) Physical change rearranges molecules but doesn't affect their internal structures. Some examples of physical change are: • whipping egg whites (air is forced into the fluid, but no new substance is produced) • magnetizing a compass needle (there is realignment of groups ("domains") of iron atoms, but no real change within the iron atoms themselves). • boiling water (water molecules are forced away from each other when the liquid changes to vapor, but the molecules are still H2O.) • dissolving sugar in water (sugar molecules are dispersed within the water, but the individual sugar molecules are unchanged.) • dicing potatoes (cutting usually separates molecules without changing them.) Classification of real processes can be tricky. Complex changes can be broken down into many simpler steps. Some of the steps are chemical and others are physical, so the overall process can't cleanly be placed in either category. For example, boiling coffee involves chemical change (the delicate molecules that give coffee its flavor react with air and become new, bitter-tasting substances) and physical change (the water in the coffee is going from liquid to gaseous form). -ONIN VINCENT BORLASA
I think Onin these are not chemical reaction , it is the changes that happen within a substance.But its ok because it explains how does it change its appearance or how it produce a new substance.That`s Good!!
Mole ConceptTaught by Ron the chemist - Ronaldo Reyes A Mole is: The Mole6.02 x 1023 of anything.The formula mass in grams of a substance contains one mole of particles.Na = Avogadro's Number = 6.02 x 1023 Spreading a "mole" of marbles over the entire surface of the earth would produce a layer about three miles thick.When will the World's computers have a mole of digital data stored in them? Important mole conversion factors:1 mole = 6.02 x 1023 particles = formula mass in gramsMolar mass - the mass of a single atom of an element (in amu) is numerically equal to the mass of one mole of those atoms (in grams).From the Periodie Table, the mass of one atom of chromium is 51.9961 amu.The mass of one mole (6.02 X 1023) of chromium atoms is 51.9961 grams.Coefficients in a chemical equation are normally used to indicate a ratio of reacting molecules. They also indicate a ratio of reacting moles. The mole concept allows chemists to use chemical equations to determine the "weight" of reactants and products in chemical reactions.For example: 2Mg(s) + O2 (g) → 2MgO(s)The balanced equation above shows that the product is 2 molecules of magnesium oxide. That also means 2 moles of magnesium oxide. By calculating the molar mass of MgO, then multiplying by the coefficient 2, the mass of MgO produced can be predicted from the balanced equation.
Factors affecting rate of chemical reaction1.Increasing the temperaturecauses the particles (atoms or molecules) of the reactants to move more quickly so that they collide with each other more frequently and with more energy. Thus, the higher the temperature, the greater the rate of reaction. If you decrease the temperature, the opposite effect occurs. The particles move more slowly, colliding less frequently and with less energy. In this case, the rate of reaction decreases. 2.Concentrationrefers to how much solute is dissolved in a solution.If a greater concentration of reactant atoms and molecules is present, there is a greater chance that collisions will occur among them. More collisions mean a higher reaction rate. Thus, increasing the concentration of the reactants usually results in a higher reaction rate. At lower concentrations, there is less chance for collisions between particles. This means that decreasing the concentrations of the reactants results in a lower reaction rate.3.Surface areais the measure of how much area of an object is exposed. For the same mass, many small particles have a greater total surface area than one large particle. For example, steel wool has a larger surface area than a block of steel of the same mass. This allows oxygen molecules to collide with many more iron atoms per unit of time. The more surface contact between reactants, the higher the rate of reaction. The less surface contact, the lower the reaction rate. Surface area can also be important if a reaction occurs between two liquids that do not mix. In this case, the reaction occurs only at the boundary where the two liquids meet. It is also important to note that not all reactions depend on surface area. If both reactants are gases or liquids that mix together, then there is no surface, and surface area is not a factor.4.A catalystis a substance that speeds up the rate of a chemical reaction without being used up in the reaction itself. Catalysts reduce the amount of energy required to break and form bonds during a chemical reaction. When catalysts are used, a reaction can proceed although less energy is added during the reaction. For example, enzymes are catalysts that allow chemical reactions to occur at relatively low temperatures within the body.
I think Onin it lacks two factors , the inhibitor and the nature of the reactants eventhough the nature of the reactants was not discussed. But its is ok because you have understand the factors and how it affcets a reaction.
About the endothermic and exothermic reaction. Now I know what is the difference between the two.The endothermic reaction is all about the energy that absorb by the soroundings,the energy from the sorounding is absorb by a substance.The substance temperature increases and the sorounding temperature decreases.examples are boiling of watermelting of icecharging of battery and evaporationwhile exothermic is the opposite of the endo. For example explosion.It release the energy to the sorounding