Procedure page lab# _____ lab: density of metals why an old riddle asks ^which is heavier, a pound of feathers or a pound of lead _ the question is nonsensical, of course, since a pound of feathers and a pound of lead both weigh the same – one pound nevertheless, there is. Lab: determining the density of unknown metals the materials list for this lab is simple: a balance, a graduated cylinder, and different pieces of metal you can use any metals that you might have available most middle and high school labs will have pieces of aluminum, copper, magnesium, lead, and zinc. Density = mass of substance (g) / volume of substance (ml) in this experiment, you will measure the mass and volume of two metals, copper and aluminum you will then use your data to explore the relationship between the mass and volume of the materials and. General chemistry i (fc, 09 - 10) lab # 1: the densities of solids and liquids revised 8/19/2009 1 the density of a material may be defined as mass per unit volume. Rocks often have a density around 3 g/cm 3, and metals often have densities above 6 or 7 g/cm 3 how do i calculate specific gravity to calculate the specific gravity (sg) of an object, you compare the object's density to the density of water: edinformatics on-line lab on mass, volume and density is put together by nyu it allows you to.
Pre lab questions: 1 a metal cylinder with 260 mm diameter and 750 mm height has a density of 860 g/ml calculate its mass 2 a metal sphere weighing 1848 g is added to 2000 ml of water in a graduated. The density (d) of a substance is the ratio of its mass (m) to its volume (v) you will be given samples of two or more metals and asked to identify the metals by determining their densities by graphing, finding slope, and comparing the experimental values to a list of accepted. Calculate their density after performing this lab, if someone asks you the riddle about feathers and lead, you can explain to them the difference between weight and density compute the density of each metal sample, showing your work (including units), in data table 1 remember, density = vo m lu a m s e s((g m) l) 2.
Density of some common metals and alloys - aluminum, bronze, copper, iron and more sponsored links the density of some common metals and alloys are indicated in the table below. In this lab, you will determine the density of brass as measured by two different techniques: 1) volume calculation based on water displacement and 2) volume calculation using measurements of the radius and length of the cylinder using calipers. In this lab, the student will be given 4 pieces of unknown metals the student will determine both the mass and the volume of the metal sample from these measurements the density will be calculated.
Describe how the concept of density relates to an object's mass and volume explain how objects of similar mass can have differing volume, and how objects of similar volume can have differing mass explain why changing an object's mass or volume does not affect its density (ie, understand density as an intensive property. Tony nguyen honors chemistry period 7 9/17/13 the density of metals lab backround: density is a constant relationship between the mass and volume of a specific type of matter measurements of both mass and volume can be obtained for a metal sample. Density lab purpose: to determine the densities of unknown metals materials: safety goggles, triple-beam scale, graduated cylinder, ruler, 3 metal samples safety: wear safety goggles, follow instructions on proper disposal procedure: (use significant figures and include the appropriate unit) 1 make observations of your three samples and record them in data table 1. Metals density lab start by reading the problem by clicking on the title “metals density problem” in the top right corner place the following items on the workbench: 1 double click on metal 1 to place it on the workbench 2 click on the glassware, then graduated cylinder, then 25 ml graduated cylinder to place it on the workbench. Comparing the density of metals ifferent materials be distinguished from one another pre-lab objectives measure the mass and volume of four metal samples • calculate the density of sample from these measurements comparing densities of metals.
The slope of the line is the density of the metal (m/v) record the slope in data table 2 look at the class density of the unknown metal you graphed, which is the slope of your line examine your own lab group’s density for the same unknown. Weigh a metal sample in a stoppered flask afterward, add water and weigh the sample again using calculations/values from the “density of a liquid” portion, calculate the density of the metal. Specific heat of metals lab experiment this experiment was conducted to identify a quantity of unknown metal using calorimeter and conservation of heat principles and determine specific heat of metals. Experiment 3 introduction to density the density you calculate for your sample with the density of the metal found in a reference book lab partner: experiment 3 density part 1: density of water 1 look up the actual density of water: what are the units 2 mass of a dry 25-ml graduated cylinder .
1) weigh 1 of the aluminum rods on an analytical balance record check if you tarred the balance before use 2) use 50 ml graduated cylinder, filled with 20 ml of water. Lab 2: density of common metals the density of substance is a physical property that can be used to identify, in conjunction with other collaborating evidence, the identity and purity of a substance. The si unit of density is kg/m 3 but it will suffice in the lab for us to use g/cm 3 (remember, 1 cm 3 = 1 ml so 1 g/cm 3 = 1 g/ml) the measurement of density requires two pieces of data and therefore requires great care in the making of both measurements so as not to lose precision.
Density is an intensive property meaning that a substance’s density will be the same regardless of the size of a sample for example, steel has a density of 785 g/cm 3 whether you have a tiny steel ball. Density of two metals lab and density of metal a and of metal b 2 graph the compiled class data on one set of axes 3 find the slope of each line on the graph - metal a and metal b 4 write the slope on the graph analysis questions. Part b (density of metal shot) obtain an unknown metal shot from the stockroom write down the unknown number: unknown metal shot number:_____(b1) place a beaker on a balance and tare the balance with the balance tared (it should read 0000 g with the beaker on it) add all of your. 2 density measurement in this equation, vcylinder1 is the ﬂrst approximation to the volume of the cylinder, r is the radius of the cylinder, d is the diameter of the cylinder, which is twice the radius of the cylinder, and h is the height of the cylinder.