2.12 1.69 20.28% HCI 2 8*10-4 M 2.64 3.09 17.04% HCI 3 3.2*10-5 M 3.38 4.49 24.72% HCI 4 1.3*10-6 M 5.85 5.88 0.51% Bases Concentration of base after dilution Experimental pH Theoretical pH % error NaOH 1 2*10-2 M 11.42 12.31 7.15% NaOH 2 8*10-4 M 9.64 10.91 11.55% NaOH 3 3.2*10-5 M 8.68 9.50 8.63% NaOH 4 1.28*10-6 M 7.98 8.10 1.48% Combined Concentration of acid and base after combination Experimental pH Theoretical pH % error 1 2*10-2 M 6.91 7 1.28% 2 8*10-4 M 6.04 7 13.71% 3
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DETERMINATION OF % COMPOSITION OF PENNIES USING REDOX AND DOUBLE DISPLACEMENT (PRECIPITATION) REACTIONS Pre- Lab 8 Objective: The purpose of this experiment is to determine the percent composition of pennies using oxidation-reduction and double displacement reactions as well as titration techniques. We will take a post 1982 penny and place in a strong acid dissolving the zinc core and leaving behind the copper coating. We will figure out the percent composition from the mass of copper and zinc using
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= 300g 9.8 3. Explain the effect of mass on Hooke’s Law. Hooke’s Law states that the restoring force of a spring is directly proportional to a small displacement. Applying a mass to the end of the spring stretches it‚ changing the length from its original equilibrium position of rest‚ to a new (lower) equilibrium position. At this position‚ the vertical restoring force of the spring balances the weight and the downward pull of gravity is balanced by the upward pull of the spring
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Lesson 8 Shannon Frenzel Questions: 1. In “My Papa’s Waltz” there are many different words used to imply an abusive father. The third like in the poem “But I hung on like death:” is the first example of a little boy clinging to his father in fear. It shows the fear of the little boy with his father but also that he looks up to him. Another place where an abusive relationship is conveyed is the last 2 lines in the second stanza “My mother’s countenance Could not unfrown itself.” While the father
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Exercise 8: Range/Endurance Givens Conditions: Gross Weight for Beginning of Cruise = 300‚000 lbs Gross Weight at End of Cruise = 200‚000 lbs Altitude = FL350 Standard Conditions Wing Area = 3050 ft2 Wing Span = 156 ft Wing Efficiency = .75 CDp = 0.0119 Twin turbofan engines Figure 2.1 Figure 6.5 Figure 13.2 No need to take into account Temperature Ram Rise 1. Find Equivalent Airspeed‚ True Airspeed‚ and Mach for best range at FL350 and Sea Level at W = 300‚000 lb. (Use Figure 13.2 and Equations
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While Bolger’s analysis looked broadly at police use of force‚ the analysis by Harris looked only at improper use of force. What is the difference between these two concepts and what differences did you notice regarding Bolger’s results and Harris’s findings? The obvious difference between the study of the use of force and the study of improper force is easily understandable. Bolger looked at a broad sense and didn’t leave out the use of force in a rightful manner which in my opinion led to different
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2224-3577 International Journal of Science and Technology ©2012 IJST. All rights reserved http://www.ejournalofsciences.org Nuclear Force Md. Kamal uddin At‚po—pokhraira‚ via Birouli(R.I)‚samastipur(Bihar)‚ India ABSTRACT It is well established that the forces between nucleons are transmitted by meson. The quantitative explanation of nuclear forces in terms of meson theory was extremely tentative & in complete but this theory supplies a valuable point of view . it is fairly certain now
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Uniform circular motion and centripetal force Results Mass(kg) | Radius(m) | Velocity(m/s) | CentripetalForce[Calculation](kg. m/s2) | CentripetalForce[Measure](kg. m/s2) | StandardDerivation(%) | 0.02406 | 0.0900 | 2.023 | 1.094 | 0.7349 | 32.8 | 0.02406 | 0.0900 | 2.584 | 1.785 | 1.446 | 19.0 | 0.02406 | 0.0900 | 3.153 | 2.658 | 2.351 | 11.4 | 0.02406 | 0.0900 | 3.702 | 3.662 | 3.374 | 7.86 | 0.02406 | 0.0900 | 4.238 | 4.801 | 4.525 | 5.75 | Force versus Mass Mass(kg) | Radius(m)
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Enthymeme 1 Types of Categorical Arguments 1. Enthymeme (having less than 3 propositions) 2. Syllogism (having 3 propositions) 3. Sorites (having more than 3 propositions) 2 Enthymeme Definition • The incomplete form of argument having omitted premise or conclusion. e.g. Diamond is expensive‚ because it is rare. • Enthymeme
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Centrifugal force Centrifugal force (from Latin centrum‚ meaning "center"‚ and fugere‚ meaning "to flee") is the apparent outward force that draws a rotating body away from the center of rotation. It is caused by the inertia of the body as the body’s path is continually redirected. In Newtonian mechanics‚ the term centrifugal force is used to refer to one of two distinct concepts: an inertial force (also called a "fictitious" force) observed in a non-inertial reference frame‚ and a reaction force corresponding
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