Basic Lab Measurements and Equipment Purpose This lab experiment displays the accuracy of scientific measuring equipment. This experiment also helps to familiarize the students with these instruments. Procedure: Measure Volumes and Masses 1. Obtain a 400mL beaker and record its mass in grams. 2. Add 40mL of water to the beaker and record the volume. 3. Records the beaker’s mass now with the added water 4. Transfer the water from the beaker to a 50mL graduated cylinder and record the measurement
Premium Test method Chemistry Volume
The Vernier Caliper and Micrometer Experiment # 1 Abstract: The activity involved the use of both vernier and micrometer calipers accurately on measuring provided materials. The objectives of the act were to familiarize the students with the use of the said scales and to demonstrate their differences. The dimensions of a metallic cube made of steel and a metallic washer were measured using a vernier caliper while that of a marble made of glass and the same metal cube were measured using the
Premium Measurement Metrology
Lab Report 1: Measurement Lab Date: January 17‚20XX Lab Partners: XZ Report Date: January 24‚2014 Report Written by: XXXXXX Introduction: Measurement is a form of quantitative observation. The ability to make accurate and precise quantitative observations is crucial to science. Accuracy in this sense refers to the closeness of the measured result to the hypothetical “true” value (Motzny 2014). Having a precise measurement implies its exactness.
Premium Metric system Units of measurement Measurement
Cup o’ Noodles: Through the Eyes of a Chemist Background: Before completing this experiment‚ one must know about chemical formulas‚ ionic bonding‚ solutions and moles to understand the results of this experiment. A chemical formula is the symbol for compounds and elements. It tells chemists how many atoms are in a chemical compound‚ formula unit or molecular compound. In a chemical formula a subscript indicates how many atoms there are of an element before it. The coefficient in a chemical formula
Premium Chemistry Molecule Chemical reaction
Gram Stain: Gram is an empirical method to distinguish the species of bacteria into two groups Gram-positive and Gram-negative based on the physicochemical properties of the cells. First‚ a smear was prepared by use a sterile transfer loop that been flamed to removes some bacteria from slant agar and placed on the slide; mixed with one drop of water and let air dried. After dried‚ heat fixation the slide by passed the slide over a flame quickly 2-3 times to stick bacteria to the slide. Next‚ the
Premium Gram staining Staining Bacteria
OF EXPERIMENT The purpose of this lab was to determine the magnitude of the uncertainties produced when making measurements using common lab equipment. II.APPARATUS AND MATERIALS NEEDED safety goggles distilled water (at 20°C) laboratory apron dropper laboratory balance 2 objects of unknown mass standard masses graduated cylinder‚ 10-mL graduated cylinder‚ 100-mL III.PROCEDURE Part A: Estimating the Uncertainty of a Balance 1.We put on lab aprons and goggles. Then‚ we used the
Premium Mass Measurement Uncertainty
Title: Observations of Chemical Changes Purpose: To learn about the international system of units (SI)‚ to become familiar with common lab equipment and techniques‚ to gain proficiency in determining volume‚ mass‚ length‚ and temperature of a variety of items using common laboratory measurement devices‚ to learn to combine units to determine density and concentration‚ and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure:
Premium Density Orders of magnitude Measurement
Lab One: Laboratory Techniques and Measurements Abstract The Lab One was done on Laboratory Techniques and Measurements. The first experiment with my Lab partner; we got opportunity to experiment how to conduct measurements in length by using metric conversion. We started in cm units and changed into mm by x10‚ and moving decimal point x1 to right. To find in meter we moved from cm to meter two decimal points to the left or double check our self divided by 100 and all records in data
Premium Density Water Boiling
Thermometers: Understand the options Thermometers come in a variety of styles. Understand the different types of thermometers and how to pick the right thermometer for you.By Mayo Clinic Staff Choosing the thermometer that’s best for your family can be confusing. Here’s what you need to know about the most common thermometers. Digital thermometers Regular digital thermometers‚ which use electronic heat sensors to record body temperature‚ can be used in the rectum‚ mouth or armpit. The most accurate
Premium Temperature
Bacteria Gram Stains (F12) Materials required: * Microscope; clean and properly set up * Immersion oil * Lens paper * Lens cleaning fluid * Microscope drawing forms * Specimens: 1. Bacillus subtilis 2. Staphylococcus aureus. 3. Escherichia coli Procedure: 1. Observe each of slides listed in “Specimens” above. 2. Make your observations using oil immersion (1000X). 3. Using a drawing form draw the organisms you see using proper scale
Premium Staining Gram staining Bacteria