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  • The Function And Components Of The Lithium Ion Battery

    The components of the lithium ion batteries include a positive electrode made of metal oxide, negative electrode made of carbon (graphite), a separator made of a micro-porous polymer, and an organic electrolyte (ether) that is made up of dissolved ions of lithium. During recharge, the lithium ions travel from the positive metal oxide to the negatively charged graphite electrode. The reverse flow occurs during discharge (when the battery is in use) (Carnegie, 40; Divya and Østergaard, 513). Figure 3: Function and Components of the Lithium Ion Battery The Li-Ion batteries are a lesser developed technology as compared to the lead acid batteries. They are mostly utilized in consumer electronics because they have a higher energy density (reduced…

    Words: 1327 - Pages: 5
  • Calcium Research Paper

    surface charges are created: isomophous substitution and dissociation of H+/OH-. An Isomophous substitution creates permanent charges that occur within tetrahedral and octahedral structural units in the clay minerals, via cation substitution. Cations are exchanged with cations of similar sizes but difference valencies. For example, where Al3+ is substituted by Si4+; this creates a net negative charge on one of the oxygen’s, because of the unpaired electron. Dissociation of H+/OH- is pH dependant…

    Words: 1095 - Pages: 5
  • Ionic Compounds Lab Report

    These properties are high melting points, are brittle, don’t conduct electricity as a solid, but conduct as an aqueous solution. Ionic compounds have high melting points because there are several strong bonds, a lot of heat energy is needed to break them. They also are brittle because once a force (hit) is applied to the compound, the ions with the same charges, lineup, repel, and split apart. Ionic compounds cannot conduct electricity as a solid because they don’t have mobile particles. Due to…

    Words: 718 - Pages: 3
  • Properties Of Salts And Molecules

    Salts and molecules have different properties because salts are ionic compounds and molecules are covalent compounds. Justification: Salt is an ionic compound. An ionic compound is formed by ionic bonding between ions of opposite charge. Sodium Chloride and Potassium Bromide are both salts that have an ionic compound. Both elements have the properties of salts which include soluble in water, conductive, and a relatively high melting point. Molecules and Sugar molecules are covalent…

    Words: 1040 - Pages: 5
  • Hands-On Science With Squishy Circuits

    The stories Conducting Solutions, Energy Story, and the video Hands-On Science with Squishy Circuits have all helped me learn a lot more about electricity. The purpose of these sources were to help the reader to understand and inform the reader about how electricity is made. It also showed how easy it is to make electricity. These three sources have many differences and similarities but they all serve the same purpose. In the video Hands-On Science with Squishy Circuits it talks about how easy…

    Words: 353 - Pages: 2
  • Solid Solubility Lab Report

    Solid solubility is whether that solid can dissolve in specific solvent or not. When a solid dissolve, the ions that comprise the solid will disperse in the solvent thus create a different concentration distribution within the solvent solution. Thus we can view this as a flow of ion from high concentration to low concentration (there’s a flow of ions) Electrical activity is the ability for electron to travel within the material. Specific solid material molecule will have free electrons to…

    Words: 793 - Pages: 4
  • Covalent Bonds With Other Nonmetals

    metallic bond is still present, although the ordered structure has been broken down. The metallic bond isn't fully broken until the metal boils. That means that boiling point is actually a better guide to the strength of the metallic bond than melting point is. On melting, the bond is loosened, but still not broken. (Video file) Ionic bonding is the complete transfer of valence electron between atoms and is a type of chemical bond that generates two oppositely charged ions. In ionic bonding…

    Words: 658 - Pages: 3
  • Chromogenic Reagent Lab Report

    different pHs did not follow a linear curve. However, the graph behaved almost parabolic, meaning that there is a maximum or optimal pH in which the iron (III)-thiocyanate system is most efficient. Under these assumptions, then the optimal pH must lie within 1.5 ppm. The decrease in absorbance may result in side reactions with the ions in solution. Potassium and nitrate are spectator ions, but the increasing OH¬- ions are more reactive than the spectators. This means that iron (III) is reacting…

    Words: 1332 - Pages: 6
  • Cation And Anion Research Paper

    Ion is a group of atoms which they behave on an electrical charge; there are two types of ions; cation and anion. Cation is a positively charged ion whereas Anion is a negatively charged ion. First ionisation energy- The first ionisation energy is the energy to remove electrons that are unstable from 1 mole of gaseous atoms to gain 1 mole of gaseous ions with a positively charge (1+) As you go down a group, the energy decreases from the top to the bottom due to the shielding effect. When there…

    Words: 589 - Pages: 3
  • Unknown Salt Investigation

    Purpose: The purpose of this experiment was to determine the percent of chlorine in an unknown soluble salt through using gravimetric techniques. The unknown salt was dissolved in water and the chloride ions were precipitated using silver nitrate which produced silver chloride. The silver chloride was then separated by filtration techniques and through this the amount of chlorine in the original salt was able to be calculated. It is expected that the chlorine percent will be around 55.95%…

    Words: 1329 - Pages: 6
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