I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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in the series. The metals are Cu‚ Fe‚ Pb‚ Mg‚ Ag‚ and Zn. The half-cells are connected by a salt bridge constructed of a strip of filter paper soaked in a solution of KNO3. The zinc half-cell is used as the reference standard and assigned an E of 0 volts‚ and all reduction potentials are measured with respect to the zinc electrode. In Part 2‚ the Nernst equations applied to the voltage measurement of a cell with nonstandard copper ion concentration. A solution of 0.0010 M Cu2 + is prepared‚ and the
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“Iron-Fortified Rice Is As Efficacious As Supplemental Iron Drops in Infants and Young Children” is the first article. The main purpose was to compare the usage of iron drops with iron fortified rice. What needs to be investigated is if normal fortified foods will actually improve iron levels in iron deficient infants and children. This research would be important to nutrition schools and departments located in Brazil in order to fight iron deficiency‚ and know what fortified products can aid. Other
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You will learn that the way the orange battery cells are made and connected with each other will determine if you can generate enough voltage and current to power a LED bulb. Batteries made with different electrode materials‚ like copper‚ nickel‚ or zinc might produce different voltages. Batteries with different electrode shapes or surface areas might have different internal resistances. II. INTRODUCTION A battery is an electronic device that changes chemical energy into electrical energy.
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related to its tendency to lose or gain electrons. Three metal strips that were used are copper‚ lead and zinc as well as the solutions of silver nitrate‚ copper(II) nitrate‚ lead(II) nitrate‚ magnesium sulfate and dilute(3M) sulfuric acid. The copper metal strip was placed in the silver nitrate and dilute(3M) sulfuric acid‚ the lead metal strip was placed in the copper(II) nitrate and the zinc metal strip was placed in the lead(II) nitrate‚ magnesium sulfate and dilute(3M) sulfuric acid. Overall‚
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Experiment on Metals Aim-To find out which of these metals will be most reactive with hydrochloric acid‚and plan an investigation to test it out.The Metals given:Calcium‚Aluminium‚Iron‚Magnesium and Zinc. Prediction-I predict that the metal will be the most reactive with hydrocholoric acid is calcium because calcium is in Group 2 which is the alkaline earth metals in the periodic table and because calcium is at the extreme left side of the periodic table and as you go across a period‚the element
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known metals: Zinc‚ Copper‚ and Lead. They are each marked. You must then calculate the density of an unknown metal and determine its identity based on your data from your known samples. Reagents: None Equipment: Lead Copper Zinc Triple Beam Balance Graduated cylinder Unknown metal (Magnesium) Beaker Calculator Procedures Preparation: We observed the given equipment‚ and then placed 100 Ml of water into a graduated cylinder. Zinc 1. We then placed a sample of Zinc in the graduated
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In this lab‚ each person in the group will have two pennies. Galvanization of a penny will create a brass penny. Galvanizing the penny in sodium hydroxide with zinc causes the penny to turn from bronze to silver. Once the penny is fully galvanized you will burn the penny and spray it off and then it will turn gold. There will be a weight change also a mass change. Observing the penny to see it turn from bronze to silver to gold. Literature review Covalent bonding is a bond when atoms share pairs
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Chapter 1:Introduction 1.1 Research Question: How does the concentration of Zinc Sulphate affect the ability of Dichlorophenolindophenol to be reduced during the light dependent reactions of photosynthesis in Spinacia oleracea? 1.2 Rationale behind research: A few years back‚ on a visit to my uncle’s farmland in Rajhistan‚ India‚ I came across a few barley farms that were clearly receiving polluted water from a zinc mine nearby. The very same crops were then sold in the market! As I recounted the
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http://www.wilsonsdisease.org/ Wilson’s Disease is a genetic disorder that is fatal unless detected and treated before serious illness develops from copper poisoning. Wilson’s Disease affects one in thirty thousand people world wide. The genetic defect causes excessive copper accumulation. Small amounts of copper are essential as vitamins. Copper is present in most foods‚ and most people get much more than they need. Healthy people excrete copper they don’t need
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