Microbiology Lab Report II Title: Determination of a Bacteriophage Titer Purpose: To determine the number of phage particles or plaque-forming units in a suspension of T4 bacteriophage. Materials: 18 24 hour broth culture of Escherichia coli B. 2 ml suspension of T4 bacteriophages with a titer of at least 10‚000 phages/ml 5 trypticase soy agar (TSA) plates. These should be warmed to 37c before use 5 tubes of soft agar (0.7% agar). Prior
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| | 1 | 0.2123 | 0.00 | 42.34 | 42.34 | 2 | 0.2195 | 0.00 | 47.24 | 47.24 | 3 | 0.2049 | 0.00 | 26.65 | 46.65 | After Boiling | 1 | | 31.52 | 32.22 | 0.70 | 2 | | 29.34 | 30.61 | 1.27 | 3 | | 30.61 | 31.52 | 0.91 | Week 2: Determination of Sodium Carbonate in the unknown via titrating using bromocresol indicator Sample number: SC 8 Table 2: Titration of the unknown using hydrochloric acid Trial | Mass of unknown (g) | Burette reading (before boiling) | Final Volume
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Copper Sulfate Pentahydrate Purpose: To verify the formula for copper (II) sulfate pentahydrate by measuring the amount of water decomposed from the hydrated species. MSDS: Copper sulfate pentahydrate- Harmful if swallowed. Causes skin irritation‚ causes serious eye irritation. Very toxic to aquatic life with long effects. If copper sulfate stays in the stomach‚ the victim becomes unconscious. The symptoms of poisoning include diarrhea‚ headache and injury to vital organs. Background: 1
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Experiment 5 Gravimetric Determination of Sulfate Eisman E. Morales TA: Jackeline Pennywiit Chemistry 121 02/14/2011 Purpose: To determine the percent sulfate in a sample using a semimicro scale gravimetric procedure. Procedure: Refer to pages 41-42 of General Chemistry volume 1 Laboratory Experiments by Judith Casey and Robert Tatz‚ Hayden McNeil Publishing‚ 2010 Report Sheet See attached report sheet. Report Questions 1. Explain how your calculated value for percent
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Quantitative Determination of Sulphate by Gravimetric Analysis Table of Contents: 1. Synopsis 2. Objective 3. Theory 3.1: Summary 3.2: Technique 3.3: Chemicals 3.4: Instruments 4. Procedures 4.1: Precipitation of BaSO₄ 4.2: Washing and Filtration of BaSO₄ Precipitate 4.3: Drying and Weighing of BaSO₄ Precipitate 5. Results and Calculations 6. Discussions 7. Conclusion 8. References 1. Synopsis: This report is written about determining
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Copper Sun‚ by Sharon Draper‚ is a telling of the story of a fifteen-year-old girl named Amari. It tells about her being taken from her home in Africa‚ being sold into slavery‚ her tales in the house she was sold to‚ and her escape. Many strong emotions are displayed‚especially through Amari‚ two that were very brightly displayed were fear and sadness. Fear is a distressing feeling or emotion‚ everyone will feel fear at one point‚ it’s caused by impending danger‚ evil‚ pain‚ etc. During the story
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Melting pointe determination #01 Introduction: Objective To learn how to obtain an accurate melting point using a MELTING POINT APPARATUS‚ then use them to draw eutectic curve and determine the eutectic point. Melting point of a solid is the temperature at which the solid and its liquid form are in equilibrium‚ i.e.‚ molecules move back and forth between the two states at the same rate‚ so both phases remain present. If the temperature of a solid is measured carefully as the solid is heated
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Determination of an Equilibrium Constant Abstract: In this experiment‚ two reactions were run to determine the molar absorptivity and the equilibrium constant of FeSCN2+. The main principles used in this lab are equilibrium‚ LeChatlier’s Principle‚ Beer’s Law and Spectrocopy. The first reaction was run to completion using LeChatier’s Principle and the second reaction was run to equilibrium. A spectrophotometer was used to measure absorbances. Using a graph of absorbance versus concentration
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Lab 7: Determination of Water Hardness Using a Titrator Name: Kyndal Petrie Lab Partners: None Date of Experiment: July 19‚ 2013 Location: My house Course Number: Che112 Abstract: This experiment was to determine the hardness of the local water supply. I determined that from the 1mg of EDTA used to turn the mixture blue‚ that the water from my tap is moderately soft. Experiment and Observation: In this experiment I developed a familiarity with the concept
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Experiment 5 In the first part of this lab‚ the objective was to get the molar concentration of sodium hydroxide by using the secondary standard‚ sodium hydroxide solution with the primary standard‚ potassium hydrogen phthalate. With this information‚ we could create a second derivative plot‚ which can be used to obtain the exact concentration of the secondary standard‚ sodium hydroxide. Also‚ the indicator can give us these results along with the end points and with the readings from the pH meter;
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