Lab Report Electrical Conductivity Introduction There are some substances that are capable of conducting electricity‚ and the reason they conduct electricity is because of the type of compound the substance is. Electrolytes or any ionic compound conduct electricity and nonelectrolytes do not conduct electricity. An Ionic compound is formed from the electrical attraction between anions and cations‚ typically a metal with a non-metal‚ except hydrogen. When an ionic compound forms‚ the anion
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(Caution: Avoid contact of both skin and clothing with hydrochloric acid.) Tap or stir to mix. This new product is copper(II) chloride solution‚ CuCl2(aq). Add the precut piece of aluminum wire to the test tube. (The wire should be bent like a fish hook to hook over the top of the test tube.) Place the test tube in a cold water bath. This reaction is very fast! (Instead‚ your teacher may tell you to run cold water over the outside of the test tube. Be
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However‚ one mother was structured out of wood‚ rubber and was covered with a soft cloth‚ while the other was only made of wire. First‚ the mothers were placed in different cubicles that were connected to the two separate monkey cages. Then‚ the time the infant monkeys spent with their mothers was monitored for the first five months. To confirm what Harlow had already expected
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circuit. Take a moment to look over the site and find all the different materials. To build a circuit you will need several wires‚ a light bulb‚ a voltage source‚ a voltmeter‚ and a non – contact ammeter. Play with it to see how to grab and manipulate these tools. Click the reset all button. A. Series Circuits Build a simple series circuit that consists of 4-6 pieces of wire‚ 1 light bulb‚ and 1 battery (voltage source). In order to complete the circuit‚ the red circles at the end of each must
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right materials and the right general idea. One afternoon Hans Christian Oersted was attempting to demonstrate to his students that moving charges did not make a magnetic field. Oersted had planned to demonstrate this by showing the heating of a wire by an electric current. He also wanted to demonstrate magnetism. In order to do this‚ he provided a compass needle mounted on a wooden stand. Oersted noticed that every time the
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CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another‚ the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more elements are present in a compound‚ the formula still indicates the atom ratio. To find the formula of a compound we need to find the mass of each of the elements in a weighed sample of that compound. For example‚
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positive and negative end‚ not the wall outlet. DC motors can be found in objects such as cordless drills or battery operated remote control cars. I will also be testing shape memory alloy (muscle wire) and a pneumatic system. Muscle wire and pneumatics are a bit more complex. Muscle wire is a thin wire usually made of a nickel-titanium alloy that morphs into a preprogrammed shape when introduced to heat or electricity. The pneumatic system I’m using uses pressurized air to push a piston out of an
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body‚ but the wires are attached to the skin. This type is used for emergencies because they are only temporary. The next type is the temporary epicardial pacemaker. This type is used during heart surgery when trying to induce cardiac simulation which was the original purpose of the pacemaker. The wires are attached to outside of the heart but inside the body.
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Volume of solutions (100mL)‚ Concentration of ZnSo4 (0.1 mol)‚ Concentration KNO3 (1 mol)‚ Type of filterpaper‚ Mass of zinc and copper electrode APPARATUS • Digital Voltmeter • 2 beakers 100mL • 2 Conductivity Cups • Filterpaper • Wires 2x • Crocodile clips 2x • 100mL of 0.1 mol ZnSo4 Solution • 100mL of CuSo4 Solution with the following concentrations - 0.1 mol - 0.3 mol - 0.5 mol - 1 mol - 2 mol • 1 mol of KNO3 Solution • Zn strip 5x • Cu strip 5x • Thermometer •
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