C fold the foil several times and weigh it on the analytical balance d use your data and the density of aluminum (270 g/cm3) to calculate the. Lab 04: density and thickness of aluminum foil student will be able to: pre-lab questions do the following problems prior to performing the lab please express your answers in the correct number of significant figures you must show all calculations and include units in your answer. Pre-lab questions 1 describe how the functional units for beta carotene, xanthophyll, chlorophyll a, and chlorophyll b are different be sure to identify the subunits that adhere to paper during chromatography 2.
Thickness of aluminum foil help chemisty lab mass: 048g area: 11424cm^2 density: 270g/cm^3 i found the formula thickness=mass/(density x area) did the calculations and got 00015561780 cm is this right do the two grams cancel eachother out i think this question violates the community guidelines chat or rant, adult content. Lab report on synthesis of alum using aluminum 1 purpose: in this experiment, you will be converting the aluminum metal from a beverage can into the chemical compound potassium aluminum sulfate, kal(so4)2•12 h2o, commonly referred to as alum. Atoms: atomic structure questions and answers question one: models of the atom (20111) alpha particles at a thin gold foil after carrying out the experiment, he concluded that the atoms were mainly empty space, and that most of the matter was contained in a small, very dense. When aluminum foil is added to the solution of copper (ii) sulfate, the foil dissolves ost lab questions 1 ìf your percent yield of copper was greater than 100%, what are two plausible errors documents similar to reactions of copper experiment 6 chemical reactions of copper lab uploaded by rikubean.
Students are directed to record their observations some sample student work: as students are working to complete the lab procedure, i am walking around both to ask probing questions and to provide the copper (ii) sulfate solution when groups are ready (after recording the mass of their foil. Introduction aluminum and copper chloride lab: limiting reagent edition the reaction that is going to occur is going to be between aluminum (foil) and a copper chloride solution. Thickness of aluminum foil have you ever wondered how thick a piece of aluminum foil is perhaps you have even tried to post-lab analysis answer the following questions in complete, grammatically correct sentences experiment 1 – the thickness of aluminum foil / 3 1 what differences were there in determining the diameter of the copper. Determining aluminum foil thickness lab two common concepts used to measure the thickness of a small rectangular piece of aluminum foil: 1 volume of a rectangular solid v= length × width × height 2 density of a substance d= mass / volume steps calculate the volume of your aluminum piece. The outside of the flask and obtain the mass of the flask with the sample, foil cap, and rubber band be sure to use the same analytical balance that you used in step 10.
Post lab discussion accuracy is the closeness of an experimental value to an accepted value for example, if you were the volume of the aluminium foil ( v = m / d) the density of aluminum is 270 g/cm3 b the relative uncertainty in the mass and the volume follow up questions 1 could this method be used to determine the thickness of. The thickness of a thin aluminum sheet in science, we make use of large and small numbers many times in addition, we must often pre-lab questions do the following problems prior to coming to the lab 3 pieces of aluminum foil per lab pair 2 centimeter rulers per lab pair electronic balance procedure. Just how thick is aluminum foil this activity is a perfect way to get students to practice using significant digits in the laboratory the idea is that each lab group will be given a small rectangular piece of aluminum foil, a centimeter ruler, and access to a balance. Moles lab activities strand molar relationships have students color-code lab procedures and questions, using colored pencils/markers invite a local nutrition expert from a clinic, grocery store, or hospital to discuss the foil and make a creative sculpture students don’t always understand this from the directions.
To correctly apply the principles of significant digits in calculating the thickness of aluminum foil to correctly use scientific notation in expressing the results of the thickness calculation caution - put on your lab apron and safety glasses. The thickness of aluminum foil lab there are two major types of values in lab situations a direct measurement comes from a piece of laboratory equipment like a balance or a ruler a value that is calculated from a measurement is said to be an indirect value today. Laboratory 3: tensile testing mechanical metallurgy laboratory 431303 2 t udomphol 1 literature review 11 uniaxial tensile testing uniaxial tensile test is known as a basic and universal engineering test to achieve material. Contact us for information on additional products for additional information on how testing machines inc can help your company profit through testing, please call us at 1-800-678-3221, or e-mail [email protected] Instruct the students that one sheet of foil is to test their design ideas on water hopefully, they will use the knowledge gained from the design a boat challenge to answer that the amount of steel in a ship is spread out more than the steel pellet example ask questions and seek answers to explain why different results sometimes.
Physics 2020, fall 2005 lab 1 page 3 of 8 university of colorado at boulder, department of physics what forces are acting on the leaf fig 2. The ﬁrst foil sheet is placed over the teﬂon for the top plate to ﬂatten the capacitor, a second piece of particle board is placed on top of the foil and sheets. Density lab the thickness of aluminum foil the volume of a regular object is found by using the formula v = l x w x h, where l = length, w = width, and h = height imagine that the regular object is a rectangular-shaped piece of foil then the formula.
The thickness of aluminum foil lab in the study of chemistry, we encounter very large and very small numbers for example, the size of a molecule or thin layer of molecules is very, very small and difficult to measure directly. I don't have it with me, but i know what the lab is i need to find the thickness of aluminum foil i have all of my measurements, i just don't know how to do the math. Copper aluminum lab add 10 ml of ammonia and observe what happenspost lab questions when we added more foil and stirred, the chemical reaction slowed when we added the ammonia, it turned the substance yellowish brown and to my knowledge stopped the reaction completely.