unknown salts research table instruction Der- - Eff -formula Melting p.docx

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unknown salts research table instruction Der, | Eff -formula Melting point (oC) . Flame- i % ?LO (by mass) : Density ???1n Hyg color Icalculate this (8/ml) (kcal/mol) (for cation present) Very weak(NOT a hydrate!) greena value Ammonium Chloride Hyg 338 -NH4Cl N/A 1.519a +3.82 sublimate 520.1 (decomposes) otassium Chloride KCl odium Chloride -NacI inc Chloride - ZnCla agnesium Chloride xahydrate - C2.6H2O cium Chloride vdrate-CaCl2Â·2H2O ium Chloride drate - BaCla 2H2O ntium Chloride hydrate - 6HeO Deliquescent, Efflorescent, Hygroscopic References: 1. 87th edition of CRC Handbook of Chemistry and Physics 2. The Merck Index, 14th edition Heats of Salution, Bichowsky and Rossini, Reinhold, NY, 1936 Solution KCl hygroscopic 770 0 C Violet NaCl Hyg 801 0 C Golden Yellow ZnCl2 Del 290 0 C Light Green CaCl2. 2H2O Del 176 0 C red-orange BaCl2. 2H2O Hyg 962 0 C Bluish Green MgCl2 Hyg 714 0 C No color .

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Use the Bohr model to address this question. When a hydrogen atom makes a transition from the 4th energy level to the 2nd, counting the ground level as the first, what is the energy of the emitted photon? Express the answer in electron volts. Number eV What is the wavelength, in nanometers, of the emitted photon? Number nim What is the radius, in nanometers, of the hydrogen atom in its initial (4th) energy level? Number nm Solution energy in 4th level E4 = -13.6/4^2 eV E4 = -0.85 eV energy in 2nd level E2 = -13.6/2^2 eV E2 = -3.4 eV emitted energy E = E4 - E2 = -0.85 + 3.4 = 2.55 eV ===================== energy E = hc/lambda wavelength lambda = hc/E = (6.626*10^-34*3*10^8)/(2.55*1.6*10^-19) = 487.2 nm ========================== radius R = 0.053*n^2 Radius = R = 0.053*4^2 nm = 0.848 nm .

Use the Bohr model to address this question- When a hydrogen atom make.docx

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Use Interface Engineering Some designers suggest that speech recognition should be used in a telephone menu system. This would allow users to interact with the system by speaking instead of pressing buttons on the dial pad. Give two arguments for and three arguments against the proposal. Solution Some designers suggest that speech recognition should be used in a telephone menu system. This would allow users to interact with the system by speaking instead of pressing buttons on the dial pad. Some of the advantages and Disadvantages are given below : Advantages: Disadvantages : .

Use Interface Engineering Some designers suggest that speech recogniti.docx

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Urban Non pont source: From urban BMPs, which structural BMP would you use to control nitrogen in urban runoff. Write a paragraph (at least half a page) explaining why you would use that particular BMP. Solution I preferably use structural control BPM because Structural controls include water quality basins , infiltration basins, catch basins to regulate or impound runoff . These structures detain or filter water through plant material prior to discharge and can reduce run off quantity Water quality basins are used to store flush water and sent to treat ment plants for purification , Ponds are constructed to make sediments in the soil settle down in ponds while runoff Infiltration is where water quality is increased by treating water physically , chemically and biologically to remove pollutants Pollutant removal efficent substances should be used to treat water .

Urban Non pont source- From urban BMPs- which structural BMP would you.docx

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UNIX/Linux Devise wild-card patterns to match the following filenames: (i) foo1, foo2, and Foo5, (ii) quit.c, quit.o, and quit.h, (iii) watch.htm, watch.HTML, and Watch.html, (iv) all filenames that begin with a dot and end with .swp. Solution i) foo1, foo2, and Foo5 [f,F]oo[1,2,5] [f,F] means first character could be f or F then oo then last could be 1 2 5 ii) quit.c, quit.o, and quit.h, quit.? ?:any single charater after quit iii) watch.htm, watch.HTML, and Watch.html -i watch.htm[?, ] -i ignore case ? any single character character ot empty 4.all filenames that begin with a dot and end with .swp. ^.swp$ ^ denotes begining $ denotes endingof line .

UNIX-Linux Devise wild-card patterns to match the following filenames-.docx

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Under what conditions are quantitative tools useful in analyzing data? Qualitative tools? Solution Quantitative methods place greatest reliance on representing developments numerically. Numerical data, of many types, are useful in thinking about longer-term developments, and to a certain extent they can be useful ways of presenting Foresight results, too. As in in econometrics, quantitative methods implicitly or explicitly use simple models of some sort. For example, time series extrapolations of trends imply a model in that use time as the \"independent variable\" .

Under what conditions are quantitative tools useful in analyzing data-.docx

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Under what circumstances does a company prepare consolidated financial statements? Solution Consolidated Financial Statement Consolidated financial statements are the combined financial statements of the parent company and its subsidiary companies. Purpose of consolidated financial statements (CFS) is to present the financial position of parent and its all subsidiaries as a single business entity. Purpose of presentation of CFS is to provide the more meaningful information to stockholders and creditors than separate presentation by parent and each subsidiary. In these circumstances consolidation of financial statements required. However a majority -owned .

Under what circumstances does a company prepare consolidated financial.docx

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umps from a bridge above a deep gorge. Bob watches from the bridge. Let event D be Alice\'s departure from Bob\'s location on the bridge, and event R be her return to Bob\'s location on the bridge. Carol observes these events from a a train passing over the bridge, and uses synchronized clocks on the train to measure the time between Alice\'s departure and return. (a) Which person\'s watch or clocks register(s) a proper time between events D and R? (b) Which person\'s watch or clocks register(s) the space- time interval between those events? Which person\'s watch or clocks register(s) a coordinate time between those events in some inertial frame? (c) A. Alice B. Bob C. Carol D. Alice and Bob E. Bob and Carol F. Alice and Carol T All three observers rope Solution a) time measured by a clock that has the same motion as the observer A. Alica b)D. Alica and Bob c) A. Alica .

umps from a bridge above a deep gorge- Bob watches from the bridge- Le.docx

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UESTION 7 Andersen works for the public relations department of Sigma Sales Company. His job includes putting a \"good face\" and a positive \"spin\" on the company\'s successes as well as its failures and shortcomings. In this context, \"ethics\" mainly consists of A. Machiavellianism B. Aristotle\'s Virtue Ethics C. Plato\'s conception of a \"just\" organization D. \"Revealed\" higher truths. Solution Plato\'s conception of a \"just\" organization .

UESTION 7 Andersen works for the public relations department of Sigma.docx

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Type your question here Does the table represent an exponential functi.docx

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ty ty +x +X Solution Let, mass of each rod , m = M length of each rod , L = 7.5 m Case(a): ( with all four rods ) Total mass, m1 = 4 M X-coordinate of center of mass , X1 =0 Y-coordinate of center of mass , Y1 =0 Case (b) : ( for the removed rod ) mass, m2 = M X-coordinate of center of mass , X2 =L / 2 = 7.5 /2 = 3.75 m Y-coordinate of center of mass , Y2 =0 Center of mass of the remaining part: X-coordinate of center of mass , Xcm = (m1 X1 - m2 X2 ) / ( m1- m2 )= ( 4 M * 0 - M * 4.0 ) / ( 4 M - M ) = -1.33 m Y-coordinate of center of mass , Ycm = (m1 Y1 - m2 Y2 ) / ( m1- m2 )= ( 4 M * 0 - M * 0 ) / ( 4 M - M ) = 0 m .

ty ty +x +X SolutionLet- mass of each rod - m - M length of each rod -.docx

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True/False (a) Ganymede is the only known satellite to have an intrinsic magnetic field T F (b) Titan has the thickest atmosphere in the solar system T F (c) The E-ring of Saturn was formed by impacts on Enceladus T F (d) Coriolis effect causes the jet streams on Jupiter T F Solution a) T Because, no other satellites have magnetic field. b) T Others also have atmosphere. But titan has thickest atmosphere. c) T d) T Jupiter rotates much faster and has a thicker atmosphere, so its coriolis effect is much stronger. .

True-False (a) Ganymede is the only known satellite to have an intrins.docx

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True or false. If true or false state your reason. 2 lanes are subspaces of R2 because: if we have y=mx and (t, mt) 1. They are closed under addition: (t, mt)+(s, ms)=(t+s, m*(t+s)) 2. They are closed under scalar multiplication: r*(t, mt)=(rt, r*(mt)) 3. Zero vector because they pass through the center of grid coordinates. These 2 lanes are isomorphic because for each x there is y1 and y2 (one-to-one). Similarly, each plane in R3 passing through origin is a subspace and has equation ax+by+cz=0. Both planes isomorphic because they also have one-to-one correspondence between points on the plane Thank you. Solution This is TRUE.....zero vector acts as the identity element....so a plane to be subspaces it need to pass through origin.....in case of y = mx the plane is passing through origin and hence it forms subspaces..... .

True or false- If true or false state your reason- 2 lanes are subspa.docx

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true or false The Doppler effect is a change in frequency due to the relative motion of a source of sound. 27. The amplitude of the wave is the time it takes it to pass a point. 28. When light passes through a lens it bends due to the property called refraction. 29. A magnifying glass when used to enlarge letters on a page is producing a virtual image. 30. The normal hearing range is between 20 hz and 80,000 hz Solution 1) doppelr effect is true 2) amplitude is the displacement of the particle from the mean position false 3) refraction means bending nature of light it is true 4) true magnifying lens is used to see the smaller objects to larger objects 5) normal hearing range is 20 to 20000 Hz false .

true or false The Doppler effect is a change in frequency due to the r.docx

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tte ? ????.rrof, tot i aoTA. South L has an anday ebretro chon Hrd dioveaa?Gnt.rou owney e e through ? tle matenal? an at as a Crudo Conver mate nau Solution 6. As the refractive index contiuously changes the direction of the light ray also changes contiuously, since when light ray enters into denser medium its direction will change. 7.Since air is optically rarer than water, the ray of light bends away from the normal at the point of incidence when moving from water to air while it bends towards the normal while moving from air to water. The normal at any point of a spherical bubble will pass through the center of the bubble. It is clearly visible that the air bag acts as a DIVERGING LENS (concave lens) in water. .

tte - -----rrof- tot i aoTA- South L has an anday ebretro chon Hrd dio.docx

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True or False 1. One good feature about memory-memory instruction set architecture is the low memory traffic. 2. Data/internal forwarding means that data will be stalled in the pipeline before it is written into the register file. 3. When stalling occurs in a pipeline, it will stall all instructions in front of it as well as behind it. 4. One good thing about registers is that there are an unlimited amount to use. 5. In pipelining a structural hazard occurs when at least two instructions need access to the same hardware resource. Solution 1.TRUE 2. 3.FALSE 4.TRUE 5.TRUE .

True or False 1- One good feature about memory-memory instruction set.docx

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