EXPERIMENT 1 “HOW DO I LOVE THEE LET ME COUNT THE WAYS...” DETERMINATION OF AVOGADRO’S CONSTANT Techniques Calibration drop counting MSDS available for • • stearic acid‚ CH3(CH2)16COOH cyclohexane‚ C6H12 Principles molar volume molecular structures surface areas and volumes Avogadro’s constant percent error Recommended Advanced Reading Chapter 3 in Petrucci‚ Herring‚ Madura‚ & Bissonnette’s General Chemistry‚10th Ed. Avogadro Constant...1 INTRODUCTION
Premium Atom Mole Oxygen
Design of Experiments (DOE) Tutorial Design of Experiments (DOE) techniques enables designers to determine simultaneously the individual and interactive effects of many factors that could affect the output results in any design. DOE also provides a full insight of interaction between design elements; therefore‚ it helps turn any standard design into a robust one. Simply put‚ DOE helps to pin point the sensitive parts and sensitive areas in designs that cause problems in Yield. Designers are then
Premium Factorial experiment Interaction Plot
various small terrestrial or aquatic crustaceans with seven pairs of legs adapted for crawling. * Iso- Greek for “similar to”‚ Pod- Greek for “foot”. * Organization: Phylum‚ Arthropoda; Class‚ Malacostraca; Order‚ Isopoda * Appearance: 3 main body parts: head‚ thorax‚ and abdomen One prominent pair of antennae Eyes Seven pairs of legs (14) Paired appendages at end of abdomen called uropods Color varies grey to white * Male and Female: Females have pouches at bottom of legs
Premium Crustacean Woodlouse Arthropod
Counter * Cavity Slide * Pipettes * Stop clock * Distilled water * Test tubes * Petri dish Method: 1. Remove one Daphnia and place it in the cavity slide 2. Remove the pond water and replace it with distilled water 3. Leave it for 5 minutes to acclimatize‚ then observe the heart rate under the microscope for 30 seconds‚ multiply the number by 2 to calculate the beats/min 4. Repeat with 2 more Daphnia 5. Repeat again‚ this time with a small concentration of
Premium
Sometimes the data we need may not be available from internal or external sources. In such cases‚ we may have to obtain data by conducting our own survey or experiment. In a survey‚ we do not exercise any control over the factors when we collect information. For example‚ if we want to collect data on the money various families spent last month on clothes‚ we will ask each of the families included in the survey how much it spent last month on clothes. Then we will record this information. A survey
Premium Sampling Economics Sample
Observation and Experiment Data Table A. The Overall Reaction What are the physical properties of the individual substances? Chemical Observation Calcium Chloride Grainy‚ White Sodium Bicarbonate White‚ flour texture Phenol Red Solution The color of Hawaiian punch‚ thin consistency‚ semi- transparent What happens when the substances are mixed together? Observations Calcium Chloride- Foams and heats up when mixed with the phenol red. Turned orange Sodium Bicarbonate- Turned orange
Premium Chemical reaction Chemistry Chemical substance
Experiment D-Pre-lab: Synthesis of a Room Temperature Ionic Liquid (RTIL) Name: Morgan Smith Student #:130635880 Date Submitted: November 7‚ 2014 Lab Section: Friday 2:30pm‚ Section 9 T.A: Matt Halloran 1. Refer to the last page. 2. Arrow pushing mechanism: 3. Refluxing is when the reactants are boiled and the vapor that is produced is cooled. When the vapor is cooled it changes back to its liquid state and returns to the flask. 4. The visual cue that allows you to determine that the
Premium Respiratory system Solvent Chemistry
The Afterlife Investigations: The Scole Experiment “Best evidence of life after death ever.” This is what this documentary film is pointing out. Is there really a life after death? Well this film makes me believe more that there is indeed a life after death. However‚ how can scientific evidence explain life after death? Now this film showed me how. The ninety-minute documentary film is about the Scole Experiment‚ which is a five-year investigation into life after death. It is conducted by
Free Afterlife Death Near death experience
manganese * To prepare Mn(acac)3 and calculate percentage yield * To calculate the percentage of Mn and acetyl acetone and the empirical formula THEORY Manganese is a first row transition metal that has a tremendous variety of oxidation states that appear in its compounds. The oxidation numbers range from Mn (III) in compounds like Mn(NO)3CO to Mn (VII) in KMnO4. Compounds of manganese range in oxidation number between theses two extremes. This experiment involves the preparation of a Mn
Premium Manganese Potassium permanganate Chemistry
Mrs. Lovejoy English J075 Essay #3 I would not be the kind of person who takes orders blindly whether it is from an authority figure or not. I personally would not like to be on the opposite end of this situation therefore I would find myself resisting the orders to end another’s life. Sometimes you don’t have the necessary amount of time to decide whether or not what you are being asked to do is the right thing or not‚ and in those kinds of situations people normally find themselves making
Premium Stanford prison experiment Psychology Milgram experiment