Science Lab

Purpose To find out the densities and to find out the reference of the unknown alloys. (Based on the extensive and intensive properties) Check up the words piling, volume, parsimoniousness, extensive properties, and intensive properties. Where do the units for mass and volume) flummox from and what do they mean? What is the density of distilled irrigate? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials Safety glasses, 10, 25 or 50 mL graduated cylindersDistilled piddle Metal Samples W, X,Y & Z Procedure 1. Class split into 5 groups. Every group leave get data for four metals and tell it to the family unit 2. Choose a metal ideal for every group then pass it around between groups. 3. Set a number of your metal sample and record the mass in the table. 4. Get a gradated cylinder with distilled water, but not to much to make it over flow when sample is put in. present the amount of water in the cylinder accurately 5.Then t ip the cylinder to about 45 degrees then put sample into it slowly, DONT blab any water or have to restart. Make sure no air bubbles are clinging. Then take down final volume of water cylinder. 6. Dump the water out, then dry sample off. 7. Repeat this over with the other metal samples. * Hypothesis * My hypothesis is that even though I will find the densities and names of the unknown metals its not going to be accurate because some water will spill out.Many people are going to come up with the different names because they arent care full enough. Mass of metal Initial volume of water Final volume Volume of metal ExperimentalDensity of metal Group Data Metal W Metal X Metal Y Metal Z Class Data Mass and Volumes of distributively groups metal samples Lab Group Metal W Metal X Metal Y Metal Z 1 2 3 4 5 Total * Class Exp.Density * * 1. Show an example of how your group calculated the experimental densities of your group samples and the class samples. 1. Graph the class data using mass as the x axis and volume as the y axis, (title the graph and make a legend or key for the various metal samples). 1. equivalence your groups experimental density to that of the classs experimental density from the graph and make comment as to their relative accuracies. 1.Research the possible identities of the metals base on their extensive properties (density, radioactivity, heat capacity, conductivity, lethal exposure/dosage, etc. ) and intensive properties (color, texture, luster, magnetism, reactivity, etc. ). 1. Make a claim as to the identity of the various metals base on their extensive and intensive properties. Calculate the % error for all(prenominal) of your claims for both your groups experimental values and the classs. Show an example of each type of calculation and make a table representing the organized results. *