equation‚ calculate and prepare the following solution from standard solution of 0.100 M FeCl3 by using pipette. a. 25mL FeCl3 solution (5.0 x 10-2 M) b. 25mL FeCl3 solution (1.0 x 10-2 M) c. 25mL FeCl3 solution (5.0 x 10-3 M) d. 25mL FeCl3 solution (1.0 x 10-3 M) e. 25mL FeCl3 solution (5.0 x 10-4 M) Records the volume of solution used. 2. Transfer each 5 mL of prepared solution into test tube and add 2 drops of KCNS (potassium thiocyanate) to each test tube. Shake it until homogen
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the phenotypes would have a ratio of 3:1 (Russell 2003). My results show that cross six fails to reject Mendel’s hypothesis with a ratio of 3 purple to 1 non-purple plant observed. However‚ cross three did reject Mendel’s hypothesis because epistasis was involved (Strickberger 1985). The results of my last monohybrid cross‚ cross three‚ showed a phenotypic ratio of 9 with a yellow tip to 7 all green plants. The dihybrid cross that my group generated showed a 9:3:3:1 ratio of phenotypes‚ which is the
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and outside‚ literally‚ to learn. This was exactly the case with virtual lab #11 where the experiment called for an examination of an earthworm’s exterior anatomy and interior anatomy. The earthworm as a whole is considered the dependent variable as we cannot change it. However‚ the labels to be placed can be moved so they are the independent variables. My hypothesis is quite elementary. I believe that after studying the anatomy of an earthworm I will be better educated about it. Procedure: 1. Begin
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This work contains GLG 220 Week 3 Groundwater Lab Report General Questions - General General Questions Resources: Ch. 12 of Geoscience Laboratory Complete University of Phoenix Material: Week Three Groundwater Lab Report by answering the following questions in your lab book: 12.2 A B‚ 12.11‚ 12.18‚ 12.19‚ 12.20‚ 12.21 12.25. Note that additional lab book questions and answers appear in the University of Phoenix Material to assist in your completion of the lab. Hop on the bus. Taking
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Organic Chemistry II Lab 9 Fermentation of a Carbohydrate: Ethanol from Sucrose * Introduction Ethanol is one of the oldest alcohols and also the least toxic one. Industrially‚ ethanol is made most economically by hydration of ethylene. However‚ ethanol that is intended for human consumption must‚ by law‚ be prepared by fermentation. By either method‚ ethanol‚ of course‚ has the same formula‚ structure‚ and properties. The fermentation takes place with the assistance of enzymes from yeast
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Anatomy 1 Lab FINAL EXAM ** Covers exercises 13‚ 14‚ 15‚ 16‚ 17‚ 18‚ 20‚ 21‚ 22‚ 23‚ 24‚ 25‚ 26‚ 27** Terms – Intro to Sensory Receptors (Lab 24) General senses – touch‚ pressure‚ changes in temperature‚ pain‚ blood pressure and stretching Special senses – taste‚ smell‚ sight‚ hearing‚ balance Punctate distribution – uneven distribution of sense receptors Stimuli are classified by type (modalities) such as light‚ heat‚ sound‚ pressure and specific chemicals Receptors – receiving units in
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voltages? no Activity 2: Identifying the Threshold Voltage 1. What do you see in the Active Force display? Leveled line 2. What is the threshold voltage? .8 V 3. How does the graph generated at the threshold voltage differ from the graphs generated at voltages below the threshold? They were Level Activity 3: Effect of Increases in Stimulus Intensity 1. How did the increases in voltage affect the peaks in the tracings? In the beginning significantly once the voltage reached
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Abstract……………………………………………………………………………………………2 Introduction………………………………………………………………………………………..2 Background………………………………………………………………………………..2 Objectives…………………………………………………………………………………2 Scope………………………………………………………………………………………3 Theory review……………………………………………………………………………………..3 Design of report…………………………………………………………………………………...5 Procedures…………………………………………………………………………………………5 Results……………………………………………………………………………………………..6 Discussion…………………………………………………………………………………………6 Conclusion………………………………………………………………………………………
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OLD COINS TURN TO GOLD DESIGN: Problem or Research Question: How does zinc effects the color change in a copper penny? Hypothesis: If copper and zinc comes together‚ then it will form brass‚ which gives gold color to copper penny. Variables: There were no variables at this experiment PROCEDURES: Materials: Zinc (SN) filling‚ 3M NaOH solution‚ Copper penny‚ tongs‚ Hot plate‚ 100 ml beaker‚ 250 ml beaker‚ Bunsen burner‚ Water‚ Spoon. Procedure: First‚ we turned on the hot plate.
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Investigation Investigate the amount of heat evolved when magnesium reacts with dilute acids. Planning What I am going to do I am going to find out how much heat is given out when magnesium reacts with a variety of dilute acids. In order to make comparisons between the acids‚ I shall use my results to work out how much heat would be given out if 1 mole of magnesium reacted with an excess of each acid. The acids I shall use are hydrochloric acid‚ sulphuric acid‚ nitric acid and ethanoic acid
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