aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaTeacher: in my classTeacher: in my class‚i dont want to hear you speaking tagalog! is that clear?? student: yes maam! teacher: ok‚let me know your name first student : EarlySeven Strikeland Neverbroken! teacher:Wow! are you a fil.am? student: no maam! its my english term for my real name‚Agapito HampasLupa Dimagiba! Hahahaha tawa kayo please minsan lng to hihihi Like · · Share · January 6 at 6:30pm · Teacher: in my class‚i dont want to hear
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Determination of Percent Potassium & Percent Iron in an Iron Oxalate Salt by Ion Exchange Introduction: This experiment involves determining both the percent potassium (K) and iron (Fe) in a single titration after passing a solution containing a known mass of complex salt through an ion exchange column. Ion Exchange: Certain materials called ion exchange resins consist of rather large molecules which contain ions that can be displaced. The resins are solids‚ insoluble in water‚ usually granular
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lemon it should be able to power a small light bulb. Materials *few different citrus fruits *copper nail *galvanized (zinc) nail *LED light or opaque light bulb with a 2 inch lead *crocodile clip or electric tape *micro ammeter Procedures Step 1.Prepare your fruit for the experiment by squeezing it on all sides with your hands‚ don’t squeeze too tightly and break the skin‚ the idea is to soften the fruit enough so that the juices are flowing. Step 2. Insert the copper and zinc nail about
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Star Fruit is an exciting fruit Oriyun Ross Williams Culinary Foundations II Chef Mark Varnado Star Fruit‚ it’s an exciting fruit. Carambolas also know as a star fruit is a very unique fruit. The name Carambola was names after Averrhoes‚ a 12th century Muslim philosopher and physician. Carambola is a Portuguese word derived from a South India It is a tropical fruit‚ native to the Philippines‚ Indonesia‚ Malaysia‚ India‚ Bangladesh‚ and Sri Lanka. The Star Fruit is a small to medium sized bushy
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Christy Chan (5) BIOLOGY LAB REPORT Investigation of the effect of metal ions on enzyme activity Objective To study the effect of two heavy metal ions‚ lead (II) ions and silver ions on the enzyme activity of invertase. Introduction Hypothesis: The rate of enzyme reaction of invertase decreases and the reaction eventually stops as the heavy metal ions inhibit the enzyme reactions. Biological principle: Heavy metal ions are non-competitive inhibitors. They do not compete with the substrates
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exchange of positive and negative ions between reacting solutions of two ionic compounds. Thus‚ in this example the precipitate must be either silver chloride‚ AgCl or sodium nitrate‚ NaNO3. Sodium nitrate dissolves readily in water and is therefore soluble. Thus we can conclude that silver chloride is the insoluble precipitate. We can represent the formation of this precipitate by a net ionic equation: Ag+ +NO3 ̄ +Na++Cl ̄→AgCl+NO3 ̄+Na+ Net: Ag+ (aq)+Cl ̄ (aq)→AgCl(s) Ions present in the solution but
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D-block ions and the kinetics of reactions iodine clock reaction: By Stephen Parsons 6K2 Centre number: 61813 Candidate number: 8270 Table of Contents My aim and my reaction: 3 Rate of reaction: 4 Activation enthalpy: 5 Collision theory: 6 The effect of temperature on reaction rate: 7 The effect of concentration on reaction rate: 7 The effect of a catalyst on reaction rate: 8 D-block elements: 9 The effect of extra kinetic energy (from stirring etc.): 10 Where do we use D-block ion catalysts
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ABSTRACT A Fruit battery is a device used in experiments proposed in many science textbooks around the world. It is made by inserting two different metallic objects‚ for example a galvanized nail and a copper coin‚ into an ion bridge (for example a lemon‚ a potato or paper soaked in salt water or acid). The copper coin serves as the positive electrode or cathode and the galvanized nail as the electron-producing negative electrode or anode. These two objects work as electrodes‚ causing anelectrochemical
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Determination of Cobalt Oxalate Hydtrate Introduction The objective of this lab is for students to determine the percentage of cobalt oxalate hydrate using the gravimetric analysis. They will also do a redox titration to determine the percentage of oxalate in the compound. After the percentages are calculated‚ you will determine the percent water by the difference of Oxalate and Cobalt from %100. Procedure Determination of Cobalt 1. Weigh 0.3 g of solid cobalt oxalate hydrate (from lab 8) on
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g A. Ion exchange Chromatography Ion exchange chromatography is a process for separating proteins and other molecules in a solution based on differences in net charge. Ion Exchange Chromatography relies on charge-charge interactions between the proteins in your sample and the charges immobilized on the resin of your choice. Ion exchange chromatography can be subdivided into cation exchange chromatography‚ in which positively charged ions bind to a negatively charged resin; and anion exchange chromatography
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