EXPERIMENT 2: SOLUTION PREPARATION AND STANDARDIZATION Submitted by Iris Olaso ______________________________________________________________________________ INTRODUCTION Generally‚ there are two ways in preparing a solution‚ one is by dissolving a weighed amount of solid in a required solvent and the other is by dilution of a concentrated solution into the desired concentration. In diluting concentrated solution‚ the concentration of the diluted solution can be determined by standardization
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Refining Solutions Meghan L Adams PHL/458 July 16‚ 2013 David Boswell Refining Solutions There are a number of solutions that can be reviewed to solve most any problem and most require a touch of creative or critical thinking. William Hughes once said‚ “If we are not prepared to think for ourselves‚ and to make the effort to learn how to do this well‚ we will always be in danger of becoming slaves to the ideas and values of others due to our own ignorance.” This quote is one that can be considered
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Joscely Garris Professor Vinh Hoang CHEM 1151L – 254 25 October 2013 Preparation of Viscous Solution This report discusses an experiment to study the relationship of solute/solvent and the calculations involved to measure the concentration of the solution. The first experiment to take place is the preparation of a salad dressing using xanthan gum solution‚ water and oil. Commonly used as a food thickening agent‚ Xanthan gum is a large molecule composed of several saccharides linked together
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zero? Assume α = 6.5 × 10-6 in/(in·°F) and E = 29 × 106 psi. Solution 261 For the stress at 0°C: answer For the temperature that causes zero stress: answer problem 262 A steel rod is stretched between two rigid walls and carries a tensile load of 5000 N at 20°C. If the allowable stress is not to exceed 130 MPa at -20°C‚ what is the minimum diameter of the rod? Assume α = 11.7 µm/(m·°C) and E = 200 GPa. Solution 262 d answer Problem 263 Steel railroad reels
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1. Define the following terms: a. aqueous solution- a solution in water b. colloid mixture of large molecules that will not settle or join with the other substance it is in c. concentration ratio of mass or volume of solute to mass or volume of solvent d. heterogeneous a mixture is made up by two or more different substance which are (mixed) together but are not combined e. homogenous mixture mixture that is uniform throughout f. Henry’s Law An expression for calculating the solubility
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IFSM 300 Final Assessment By my signature below‚ I confirm that the work contained here is my own‚ I have received no outside assistance and have properly cited and referenced any external research that has been incorporated in my answers. I have fully complied with UMUC’s Policy on Academic Dishonesty and Plagiarism (Policy 150.25). Failure to properly credit your research sources is a violation of this policy. _____________________________________ (Typed signature represents actual
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ought to take care of those who are out of employment and do not leave them alone‚ especially do not let them let go. A good solution would be to create a kind of groups of support that could have a motivating and supervisory function at the same time. People would feel more confident‚ motivated and they would share with each other their problems‚ hopes and ideas. One final suggestion‚ that would help‚ is for governments to create new opportunities for young people ‚ to give them chances for apprenticeships
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Solutions for Review Problems of Chapter 14 1. a. Given the following diagram for a product‚ determine the quantity of each component required to assemble one unit of the finished product. b. Draw a tree diagram for the stapler: a. F: 2 J: 2 x 2 = 4 D: 2 x 4 = 8 G: 1 L: 1 x 2 = 2 J: 1 x 2 = 2 H: 1 A: 1 x 4 = 4 D: 1 x 2 = 2 Totals: F = 2; G = 1; H = 1; J = 6; D = 10; L = 2; A = 4 b. Stapler Top Assembly Base Assembly Cover Spring Slide Assembly Base Strike Pad Rubber Pad 2 Slide
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construction crew has three members. A team of two must be chosen for a particular job. In how many ways can the team be chosen? Each of the two problems can be solved by enumerating all possibilities. Solution of Problem A There are six possible words‚ namely ab ac ba bc ca cb. Solution of Problem B Designate the three crew members by a‚ b‚ and c. Then there are three possible two- person teams‚ namely ab ac bc. (Note that ba‚ the team consisting of b and a‚ is the same as the
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