Lab 3: Bromination of Acetanilide CHEM 2110 Hassan Alsaleh 0525970 Due date :11/02/2015 Q1: To find the limiting reagent we need to find the number of moles of acetanilide‚ and the number of moles of Bromine. Mass of Acetanilide used = 0.67g Molar mass of Acetanilide = 135.16g/mol[1] Number of moles of Acetanilide = (0.67g) / (135.16g/mol) = 0‚005 mols Volume of Bromine = 0.25ml Density of Bromine = 3.103 g/ml[2] Mass of Bromine = (0.25ml) X (3.103g/ml) = 0.78g Molar mass of Bromine
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Lab 3.1 Step 1 Variable Name Problem (Yes or No) If Yes‚ What’s wrong? Declare Real creditsTaken No Declare Int creditsLeft Yes Declare as Double‚ Int can’t account for half credits Declare Real studentName Yes Needs to be String‚ not Real. Constant Real creditsneeded = 90 No Step 2 The calculation is backwards. Should be Set creditsLeft = creditsNeeded – creditsTaken. Step 3 The student’s name is Nolan Owens Step 4 The Network Systems Administration degree is awarded after 90 credits and Nolan
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Lab Title Waves Lab # 8 Name: Joseph Apap Class: PHY101-14995 Date: 07/11/2015 Purpose: To be able to discuss the sound wave properties of frequency‚ pitch‚ amplitude and loudness. To be able to discuss how the length of a sound wave affects pitch. To be able to explain the use of controlled variables in an experiment. Procedures: Required Materials: Meter Stick 2 Cardboard tubes Scissors Rubber bands Wax paper Transparent tape Flashlight Balloon Small Mirror 1. Hold 1 end of a meter stick down
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PAGE BEFORE YOU START Laboratory Section: ____________ Partners’ Names: ______________________ Last revised December 15‚ 2014 Grade: _______________________ Experiment 6 Coulomb’s Law - PRELAB 0. Pre-lab Homework (2 points) The pre-lab homework must be handed to the lab TA at the start of the lab. 1. Why is it important to recharge the spheres before each measurement? 2. Consider the function y = xn (for n = -2). Take the natural logarithm of both sides and plot ln(y) vs. ln(x) on the graph below
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Lab 3 - Individual Differences in Balance Ability Introduction Purpose: To examine whether our ability to balance is a general ability‚ or if it is specific to each test of balance. The concept of general motor abilities suggests that individuals have a capacity to perform classes of actions‚ and tasks that tap the same ability should be performed to an equivalent degree of success by each individual. The concept of specific motor abilities suggests that each task taps a unique ability‚ and there
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performed and the power developed when climbing a set of stairs and to determine the relationship between power and time. Pre-Lab Questions: 1. Power is the rate at which work is done. The work divided by the time it takes for the work to be done equals power. 2. The unit for power is the Watt which is Joules/second. 3. One horsepower (hp) is 746 watts. Procedure: In this lab‚ we calculated the work performed and the power that person creates when he or she climbs and runs a set of stairs. Each
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Module Three: Lab Questions Your first lab link can be found at What is Positive Parenting? A written transcript is also available for this lab. How is positive parenting different from negative parenting? Which do you think is more effective? Why? it’s easy to distinguish negative from positive parenting because parents that use negative parenting skills are usually shouting and yelling and saying a few if you do that again you will get whatever‚ I think positive parenting is more effective
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Lab 11: Animal Behavior Introduction Ethology is the study of animal behavior. There are two specific categories of behavior: learned ad innate. Orientation behaviors place the animal in their specific environment. Animals move away from sensory input in taxis where as behavior is the response to sensory input. Stimulus’ of light‚ heat‚ moisture‚ sound‚ or chemicals are mostly found in taxis. Kinesis is the movement that does not result in orientation with stimulus. When animals respond to each
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Lab #3 Questions 1. Which reconnaissance tool comes with Microsoft Windows that can provide and can be initiated from the DOS command prompt? What useful information does this query provide? Sam Spade - Zone Transfer ask a DNS server for all it knows about a domain‚ SMTP Relay Check whether a mail server allows third party relaying‚ Scan Addresses scan a range of IP addresses looking for open ports‚ Crawl website search a website‚ looking for email addresses‚ offsite links‚ etc.‚ Browse web browse
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CSEC 630 – Lab Assignment Q1. Which tool or technique from the above list would be most effective for a cryptanalyst to use to decipher a text encrypted with the Caesar cipher‚ and why? Floating frequency is the most effective tool used to decipher a text encrypted with the Caesar cipher. Floating frequency replace one letter of the plaintext with another to produce the cypher text‚ and any particular letter in the plaintext will always‚ in the simplest and most easily breakable of these cyphers
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