hypothetical machine of figure 3.4 also has two I/O instructions: 0011 = Load AC from I/O 0111 = Store AC to I/O In these cases‚ the 12-bit address identifies a particular I/O device. Show the program execution (using the format of Figure 3.5) for the following program: 1. Load AC from device 5. 2. Add contents of memory location 940. 3. Store AC to device 6. Assume that the next value retrieved from device 5 is 3 and that location 940 contains a value of 2. [pic] 3.4 Consider a
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Lab: Investigating Soils Observations/Data Record the observations and/or data you collected here. Describe the color‚ feel‚ and appearance of each soil sample. Sample 1: Play ground sand: khaki colored‚ feels rough‚ has more sand than rocks. Sample 2: Potting soil: black/brown-ish colored‚ feels some what soft‚ has little pieces of bark (woody stem‚ branches‚ and roots of plants.) Sample 3: Backyard soil: Orange-red‚ feels lumpy‚ muddy look alike. What is the texture of each soil sample
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Investigation 3 Student ID E12008926 Evguenia Kelley Section1 The purpose of the lab is to identify the compound based on a constant composition by performing a serious of tests. The hydrate is solid crystals compound and appears to be dry: since an ionic compound (salt) is crystallized from an aqueous solution (water)‚ by heating the hydrate the water is released from ionic structure; therefore it is possible to measure the weight of the ionic compound and calculate
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Matches or butane lighter * Aluminum foil * 1L beaker * Balance I. Candle Observation Procedure 1. Attached the candle to a note card by using melted wax. 2. Observe the candle carefully. Record as many observations as you can. 3. After that‚ light the candle. Observe the candle when it’s burning for at least 5 minutes. Record. 4. Blow the candle out. Observe the candle until no more changes are taking place. Observation before burning: + white +solid + the wick is black
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Stoichiometry Lab Stoichiometry is the end result of adding up chemical elements that were involved in chemical reactions (http://dictionary.reference.com/browse/stoichiometry). The word stoichiometry was obtained from two greek words meaning element and measure. This explains the definition for the term. A chemist named Jeremias Benjamin Richter was the chemist responsible for first realizing what stoichiometry was (http://www.chemteam.info/Stoichiometry/What-is-Stoichiometry.html). In 1972
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Page I - Cover sheet In the middle f the page give name and number of your microorganism In the right lower corner provide - your name - Lab section number (Biol 108-005) - Date submitted ( 4/18/2013) - the unknown tube # is 5 Page II table of result - This page will have your table of results include the following information - Name of the test - Medium used - Indicator used - your results Part III - All the test done As many pages as needed to do a complete job. in this section
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Kevin Nam Honors Chemistry 3/22/14 Mr. Mihordea Motion of Atoms and Molecules lab summary In this lab the standard heat of combustion of magnesium was calculated by using the calorimeter. Also‚ the point of combustion of magnesium was to see how much heat would be released from fireworks such as sparklers. The concept of this lab was to find the difference in temperature
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Thermodynamics- Enthalpy of Reaction and Hess’s Law December 5‚ 2011 Kylie Case‚ Emma McKee‚ Rebecca Smith Purpose: In this lab‚ the purpose was to verify Hess’s Law. Theory: Four main topics were covered during this experiment including enthalpy of reaction‚ heat of formation‚ Hess’s Law‚ and calorimetry. The first being enthalpy of reaction‚ ΔHrxn‚ which is the heat or enthalpy change for a chemical reaction. The energy change is equal to the amount of heat transferred at a constant
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same. A group of clock reactions will be used to determine the effect of concentration on reaction rate. The reactions include: 1.) NaHSO3 + H2SO4 H2SO3 + NaHSO4 *this reaction occurs quickly and is common to miss 2.) KIO3 + 3H2SO3 KI + 3H2SO4 3.) KIO3 + 3H2SO4 + 5KI 3K2SO4+3H20 +3I2 4.) I2 + H2SO3 + H20 H2SO4 + 2H + 2I 5.) I2 + starch starch I2 (blue-black color) Mathematically‚ we can use the Molarity formula to solve for the molarity of each solute (KI03 and NAHSO3) in order to later
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Raquel Johnson October 19‚ 2014 Solids: Recrystallization and Melting Points Organic Chemistry 2423 Lab Report: Recrystallization Abstract: The purpose of this lab was to purify an unknown compound by recrystallization. Taking an unknown compound and identifying it by purifying it from its impurities through the use of hot gravity filtration. Then to determine the unknown you were to take the melting point. An unknown compound was recrystallized from hot water to produce 0.99 grams (67% recovery)
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