CHM138 Lab 2 Measurements: Accuracy and Precision Name: Data Tables Place your completed data tables into your report here: Data Table 1 Measuring Instrument Decimal Known With Certainty Decimal Estimated Ruler Tenths Hundredths Thermometer Tenths Hundredths 10mL graduated cylinder Tenths Hundredths 50mL graduated cylinder Tenths Hundredths 100mL graduated cylinder Tenths Hundredths Data Table 2 Measurement Data Length of aluminum plastic packet 5.1cm Height of aluminum plastic packet 6
Free Measurement Volume Density
Thermodynamics- Enthalpy of Reaction and Hess’s Law Objectives: 1. To calculate the heat of reaction of a given reaction using the concepts derived from Hess’s Law. Pre-lab Questions: 1. Define Heat of Reaction. The enthalpy change associated with the completion of a chemical reaction. 2. Define Specific Heat. The energy it takes to raise the temperature of 1 gram of a substance by one degree Celsius. 3. Calculate the heat of reaction assuming no heat is lost to the calorimeter. Use correct
Premium Thermodynamics Temperature Enthalpy
Lab Report: Effects of Lysozyme Introduction: This report discusses an experiment that was done to demonstrate the effects of lysozyme on populations of Gram positive and Gram negative bacteria. Bacteria have a cell wall composed of peptidoglycan that gives the wall its strength. Gram negative bacteria have and extra component of lipopolysaccharide (LPS)‚ that is stabilized with magnesium ions‚ to their cell wall that further protects them. When Gram positive bacteria are treated with lysozyme
Premium Bacteria Staining Microbiology
INTRODUCTION Determining the sugar concentration of food samples is very important especially in industries where quality control is monitored. One method to determine the sugar concentration of reducing sugars is by heating with 3‚5 dinitrosalicylic acid(DNS) which produce a red-brown product Miller(1959)The reaction is direct‚thus the method is preferred over the Benedict’s test method. The concentration of the coloured complex can be determined with the spectrophotometer at Absorbance 540
Premium Water Boiling Sugar
ESSAY: Describe a goal or challenge in your past that required perseverance and determination to accomplish. When I was a young child I set a goal to serve a full-time mission for the Church of Jesus Christ of Latter Day Saints. During my teenage years I experienced many obstacles and challenges that seemed to detour me from achieving my goal. I participated in many extracurricular events that ranged from high school baseball to scouting. I tasted failure and success any many of these endeavors
Premium High school Seizure Symptoms
Self-Determination “I have not failed. I’ve just found 10‚000 ways that won’t work.” ― Thomas A. Edison I believe that if you have self-determination then there is no such thing as failure‚ only improvements. This means that if I work hard enough and put my mind to it‚ I can do it. I may not reach my accomplishments right away but if I do want to be successful I will have to have failed many times before I reach what I to accomplish. Possibilities are endless with self-determination. I
Free Incandescent light bulb Thomas Edison Failure
9 13.5 A to D 3.5 5.5 12 17.5 B to C 4 4 8.5 13 B to D 2 2.5 5 7.5 C to D 3 3.5 5.5 10.5 Analysis: Answer the following questions in complete sentences. Include the answers in theAnalysis and Conclusion section of your lab report. 1. How does the density and distribution of your “stars” change as the balloon expands? When the balloon is not inflated‚ the “stars” are closer together. Thus‚ they are denser. When the balloon is blown up‚ the universe is bigger‚ making the stars less dense
Premium General relativity Universe Physical cosmology
CheckPoint: Patient Self-Determination Act CheckPoint: Patient Self-Determination Act The Patient Self-Determination Act which became effective in 1990 required consumers to be provided with informed consent‚ information about their right to make advance health care decisions (called advance directives)‚ and information about state laws that impact legal choices in making health care decisions. All health care facilities in North America are by the act required to notify patients ages 18 and
Premium Medical ethics Health care proxy Health care
Spectrophotometric Determination of Equilibrium Formal Report Matt DeLuca The Department of Chemistry‚ SUNY College at Brockport Brockport‚ NY 14420 CHM 206.04 Abstract: The main objective of this experiment was incorporating the use of spectrophotometry in an attempt to study the position of equilibrium. Furthermore‚ after the completion of this experiment‚ the formation of the equilibrium constant of the iron thiocyanate complex
Premium Mathematics Concentration Solution
SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT OF A REACTION UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES August 2‚ 2013 ABSTRACT The objective of this experiment is to determine the equilibrium constant‚ denoted Keq‚ for the formation of [Fe(SCN)]2+ complex which is a product of the reaction between the ions Fe3+ and SCN-. In performing this experiment‚ solutions containing FeCl3 and KSCN‚ diluted in HCl‚ were measured for their absorbance using a UV-Vis
Premium Concentration Chemical reaction Chemical equilibrium