Chemistry Beer’s Law & Colorimetry Submitted by Monika Rebalska Date Submitted: 3/7/2015 Date Performed: 3/5/2015 Lab Section: Chem-180 Course Instructor: Cynthia Spencer Purpose The purpose of this experiment was to construct a Beer’s Law Plot‚ determine the concentration of a sample using the Beer’s law plot‚ and
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Nailea Rosales Chemistry THE GAS LAWS LAB LAB 1 Pressure in kPa Volume in ml Dataset 1 30 90 Dataset 2 35 80 Dataset 3 40 75 Dataset 4 45 70 Dataset 5 50 60 Dataset 6 60 50 LAB 2 New temp. in Celsius New Volume in ml Dataset 1 5 47 Dataset 2 10 48 Dataset 3 15 49 Dataset 4 20 50 Dataset 5 25 51 Dataset 6 30 52 1. Describe the relationship that you observed between pressure and volume in this lab. Refer to your data and/or graph to help support your answer. I observed that the higher the pressure
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tubing and bend the glass tube into a U-shape. The glass tube is then filled with a liquid‚ typically mercury‚ so that all trapped air is removed from the sealed end of the tube. The glass tube is then positioned with the curved region at the bottom. The mercury settles to the bottom After the mercury settles to the bottom of the manometer‚ a vacuum is produced in the sealed tube. The open tube is connected to the system whose pressure is being measured. In the sealed tube‚ there is no gas to exert
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EVERY 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
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FM 2 FLOW ALONG A VENTURI TUBE Summary The objectives of the experiment is to study the validity of the Bernoulli equation and to determine the coefficient of discharge‚ Cd‚ by calibrating the venturi tube as a flow meter. To investigate the validity of the Bernoulli equation‚ the static pressure is taken at each tapping and the total head is determined for the maximum difference setting. The velocity head is calculated using the Bernoulli equation. To calculate Cd‚ the volumetric flow rate
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Experiment to determine absolute zero using Charles’s law In this experiment you will be determining the specific heat capacity of oil using an electrical method. You will need to ensure that your write up contains the following: • Clear method (bullet points are ok) and labelled diagram include what is to be repeated and averaged. • State independent/dependent and control variable(s) • State what is to be varied and how (include range and intervals)? • What is to be measured and what with
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her heart was beating regularly and she can breathe spontaneously. Sara was completely dependent on the PEG tube for feeding. The doctors responsible for Sara’s case decided that the life was with no value for Sara and the PEG tube should be withdrawn. Sara’s husband and her family reject this decision and they have approached the Sharia court to prevent doctor from withdrawing the PEG tube. The ethics of this case was turned on why the physician is recommending withdrawal‚ and why the husband (SDM)
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development of fashion hype in Singapore. Singapore is a young city known for its order and conformity; many foreigners would describe It was not too long ago that Singapore was described by quite a few as a boring and sterile country with rigid laws put in place. However‚ it is also fair to say that Singapore’s fashion scene has been undergoing some a dramatic transformation. For a start‚ those who know how Singapore works‚ it would not come as a surprise to see government agencies have been
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Name: _____________________________________ Block: _________ Date: _______________ Lab #14: Boyle’s Law Objective: To determine the relationship between the pressure and volume of a gas at constant temperature. Introduction: The relationship of pressure to volume for a gas in a rigid container was first described in 1662 by the Irishborn scientist Sir Robert Boyle (16271691)‚ and is known as Boyle’s Law. As long as the temperature of the gas remains constant‚ the pressure
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Microscale Crystallization – Craig Tube For this experiment‚ we had to find the percent recovery and melting point of pure sulfanilamide from impure sulfanilamide using the crystallization technique. To start‚ .1004 grams of impure sulfanilamide was put into a Craig tube with enough ethyl alcohol to barely pass the top of the sulfanilamide. The Craig tube was put into a stone block until boil‚ then check to see if the solid material had dissolve. With the addition of two more drops from a supply
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