Experiment 8: Separation of a Mixture of Solids Purpose: The purpose of this lab is to separate the solids mixture containing the iron, sand, benzoic acid and salt. These solids were separated based on the unique properties of different solids such as variation in the magnetic properties and variation is solubility such as ranging from completely insoluble to completely soluble. Procedure: The necessary materials required for this lab procedures was obtained from the labpaq: solids mixture, weighing dish, and digital weighing scale. Each and every solid separated in this lab experiment was weighed using the weighing dish and digital weighing scale. From the solids mixture, the iron filling were separated by using the property of iron fillings that they were attracted towards the magnet.
The motion of these components can be described as d=vt for constant horizontal motion, and d=1/2at² + Vit. The initial velocity with no angle will be found first, and then will be used to find the distance at which we place the bin. Apparatus: You will need: -Projectile launcher -Plumb Bob -Metric Tape Measure -Carbon Paper -White Paper Setup: * Part I * Part II Part I: Determine Muzzle velocity 1. Firmly attach the Launcher Base to a table by using a C-clamp, with the “launch point” (marked on the side with a circle and a cross) hanging over the edge. Make sure the launch range is clear of any obstructions.
PK-S Lab 03 – Lab Report Name: ____________________ Section: ___________________ EXPERIMENT 3: Trigonometric Measurements Procedures: 1. Experimental measurement of the angles and sides of a right triangle: A. Create a triangle by taping a string against a wall and taping the bottom of the string to the floor or a table set against the wall. Make sure that the wall is perpendicular to the floor or table by measuring angle C, which should be 90o. B.
Friction Objectives: To provide an understanding of the concept of friction. To calculate the coefficient of friction of an object by two methods. Materials: Ramp board: 3 - 4 feet long, 10 cm wide Can of soft drink or item of similar weight Friction block set-PK Protractor Scale-Spring-500-g Tape measure, 3-m Lab notes: Using the wooden block provided in LabPaq, a long board, a can of beans and the 500-g spring scale I will try and determine the force of kinetic friction, N, and the force of static friction, N while pulling the block at a constant speed. I will convert kg-mass to Newtons by multiplying the kg-weight by 9.8 m/s2, i.e., 100 g = 0.1 kg = 0.1 x 9.8 = .98 N. Observations: Mass of block (with can): 3995 kg Weight: 3.91 N Data Table 1: Flat board Flat board Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.1 0.6 Trial 2 1 0.7 Trial 3 1 0.9 Average 1.03 0.73 Data table 2: Flat board - Block Sideways Mass of block (with can) 3995 kg Weight: 3.91 N Flat Board - Block sideways Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.3 1.4 Trial 2 1.1 1.5 Trial 3 1.1 1.1 Average 1.2 1.5 Data Table 3: Different surfaces Surfaces tried: Glass surface Force of Kinetic Friction, N Force of Static Friction, N Trial 1 0.4 0.1 Trial 2 0.4 0.1 Trial 3 0.4 0.2 Average 0.4 0.13 Data Table 4: Different Surfaces Surfaces tried: Sandpaper Force of Kinetic Friction, N Force of Static Friction, N Trial 1 2.2 1.5 Trial 2 2.1 1.7 Trial 3 2 1.1 Average 2.1 1.43 Data Table 5: Different Surfaces Surfaces tried: Wood on Carpet Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.4 1.9 Trial 2 1.5 1.6 Trial 3 1.5 1.7 Average 1.47 1.73 Data Table 6: Raised Board Height Base Length θ max μs Trial 1 .44196 m .71120 m 60 deg 0.62143 Trial 2
For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. 2. Inertia - A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. 3. Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration.
Then do the same thing with a separate unknown weight and Beaker and Centigram Balance. Next, measure all of the same measurements with the Electronic Balance and record the information. Record all of the information in the table below. For more information make the exact same measurements in order following the data table below. Data: The Centigram Balance: Direct Weighing Mass of slug on a centigram balance using the direct-weighing technique: ___2.99g___ * Mass of the same slug directly on another centigram
Calculations Write out all steps of the calculations that you conducted in order to solve for the formula of the hydrate. Organization and sub-titles are important for this section of the lab report, as are units and formulas on all data used in the calculations. For example, you can use subheadings such as “Subtraction to determine the initial mass of the hydrate” to explain what is being done in each calculation and why. Discussion and Conclusion: The first part of this section of the lab is the discussion, in which you discuss any mistakes that may have been made (or what measures were taken to try to avoid mistakes) and what improvements, if any, you can think of for the procedure for the next time the lab will be conducted. In the discussion section of this lab report, you will want to discuss the importance for heating the hydrate for a sufficient amount of time.
This is the belief that everything in the universe including all human actions and choices has a cause. Thus, all events are causally determined and theoretically predictable; you just need to know the effect of the causes. This is a mechanistic philosophy, put forward in the Cosmological argument by St. Thomas Aquinas. In addition, other philosophers agree with the illusion of moral choice such as John Locke who used a strong analogy in
We also learned that anytime the inequality symbol has the equal to bar means the graph will have a solid line. This means that the points that fall on the line are also part of the solution
Kimberly Lanese August 27th 2014 Intro to Chemistry Top Loading Balance 1. How is the balance turned on? In order to turn the balance on we need to push down on the bar until numbers show up on the screen of the scale. 2. Write a complete and accurate procedure for weighing a chemical on the top loading balance.