ulation based on water displacement and 2) volume calculation using measurements of the radius and length of the cylinder using calipers mass and linear measurements are basic units in the metric system in chemistry, mass is.
Name: _____ pre-lab #1: introduction to lab techniques introduction to measurements there are numerous aspects to chemistry, but a common thread between them all is the process of. Lab activity – mass, volume and density identification of metal samples through density values purpose: in this experiment, you will • measure the mass and volume of known and unknown metal samples using a balance and the displacement method • use your raw data to calculate the density of the metal samples • compare your density. 1 density (reading assignment: chang, chemistry, 9th edition, pp 14-19) you may also receive pre-lab questions that must be answered prior to performing the experiment be sure that you bring your laboratory manual, a scientific calculator, and eye protection to each laboratory meeting failure to arrive on-time with each of these items is cause. General chemistry lab 1025c comparing the density of pennies-sl introduction: occasionally the us department of treasury changes the composition of pennies, which changes the overall mass and density of each coin in this experiment, you will determine the average density of two groups of pennies made at different times then.
Precision was found by taking the absolute value of the highest density minus the lowest density, dividing that difference by the average density, and then multiplying that answer by 1000 for example, the precision for the water was found by this equation: |(09958 g/ml – 09650 g/ml)| / 09823 g/ml x 1000 this gave me an answer of 313544 ppt. Pre-lab guidelines please follow the format provided below for your pre-lab write-up the pre-lab assignment is intended to prepare you for the lab and therefore should be written in your lab notebook before you come to the lab. Experiment 1 - density of liquids and solids goal: to accurately determine the density of an unknown liquid and an unknown solid density = mass units are: g or g where 1 ml = 1 cm3 volume ml cm3 to properly measure density, we need a container whose volume is known to a high degree of accuracy this container is known as a. Lab reports are an essential part of all laboratory courses and usually a significant part of your grade if your instructor gives you an outline for how to write a lab report, use that some instructors require the lab report be included in a lab notebook, while others will request a separate.
Sample traditional lab report - density of pennies hypothesis (based on the instructions provided) the density of pennies made before 1982 will be greater than the density. Pre-lab questions and calculations: (show your work) on a separate sheet of paper complete the following problems before coming to lab 1 you are given a bottle that contains 459 cm3 of a metallic solid the total mass of the.
Density make-up lab report 09/02/2016 den-1 name _____ section _____ lab partners: _____ pre-lab activity questions 1 what are typical units for the density of a solid or liquid sample 2 what is the formula to calculate the volume of a rectangular solid 3 what is the mathematical relationship between ml and cm 3 4 what is the.
1 density and mass percent measurements to determine sugar content objective: the mass percent of sugar present in various beverages will be determined by comparing their measured densities to a set of standard sugar-water solutions the standard sugar-water solutions are first used to construct a calibration. Experiment 2 density pre - lab report • pre-lab reports (due when you enter lab) - pre-lab activity/questions - msds analysis - illustrated lab procedure scenario since the state of delaware mandated universal recycling in september, 2011, recycling has become a growth industry in the state. 5 standard error of density measurement calculations shown page after table 3 using the correct significant figures the percent error in the density measurement i