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Discuss the coordination chemistry and chemical speciation utilized in the analysis of fluoride in water samples by fluoride ion-selective electrode.
Suppose 264 g of Na metal is formed. Electrolysis of molten NaCl in a Downs cell is the major isolation step in the production of sodium metal.
Determine how many seconds does it take to deposit 2.87 g Ni on a decorative drawer handle when the 13.1 A is passed through a Ni (NO3)2 solution?
a siren consist of an intensity of around 107.2 W/m2 at a certain point, and a second sound wave from a close by ambulance consists of an intensity level 9 dB greater than the siren's sound wave at
A typical cell phone conveys microwaves having peak output power of around 2 W. When you suppose the cell phone is a point source, determine what would be radiated power at your brain 5 cm away from
What is the molarity of the sulphuric acid when a 10.00 mL sample of sulfuric acid from an automobile battery requires 35.08 mL of 2.12 M sodium hydroxide solution for complete neutralizati
Find out the induced emf in a circle of tissue of radium 1.6 mm which is perpendicular to the direction of the field.
Determine the concentration of an aqueous KCl solution if the 25.00 mL of the solution gives 0.430 g of AgCl when treated with an excess of AgNO3?
Your instructor asks you to design and build a refracting telescope encompassing a magnification of 45 by employing an available eyepiece of focal length 4.0 cm. Determine how long must you make the
Illustrate the skeletal structure of the compound with molecular formula C3H4Cl4 whose proton NMR spectrum contains a downfield quartet and an up field doublet with relative integration of 1:3.
If water freezes, it expands around 9.00%. Determine what would be the pressure raise within your automobile engine block when the water in it froze? The bulk modulus of ice is around 2.00 x 10^9 N/
Determine the free-energy change for ammonia synthesis at the 25oC given the following sets of partial pressures:
If an acid solution weighing 57.012 g was added to the tablet, carbon-dioxide gas was released, generating a fizz. The resultant solution weighed 57.743 g. Determine how many grams of carbon-dioxide
In qualitative analysis, Hg22+, Ag+ and Pb2+ are separated from other cations by addition of the HCl. Determine the concentration of Cl- needed to just begin precipitation of AgCl, Hg2Cl2, a
Show whether this reaction is a thermally allowed or forbidden reaction using frontier molecular orbital. Consider the internal addition reaction of cis 1, 3, 5 hexatrieneto form 2,2,0- bicyclohexe
Volcanoes emit a lot hydrogen sulphide gas, H2S that reacts with the oxygen in the air to form water and sulphur dioxide, SO2. Each and every 66 tons of H2S reacts with the 93 tons of oxygen and makes
Chemist heated the 5.122g of a hydrate to constant weight of the 2.788g.The Formula weight of the anhydrous salt is the 258 g/mol.
How fast was plane traveling (in meters/sec) on lift off? Model and solve using differential equations. Illustrate all differential equations and work.
Oil of average Cp= 0.8 Btu/(lb)(F) flows from an open reservoir standing on a hill 1000ft high into another open reservoir at the bottom.
A mass of 100 g is joined to one end of a mass less rod, 10 cm in length, which is pivoted around the opposite end. The rod is held vertical, having the mass at the top and released. The rod swings.
Calculate the electron-geometry type and shape molecule for C4H10, butane? Determine how many electron domains are in C4H10, butane?
Determine the amounts of components in the mixture at equilibrium given that K=870 for the reaction H2+I2 <-- --> 2HI (g) A sealed container was filled with 0.3 mol H2 (g), 0.4 molI2(g) and 0
The object is held at rest in a position in such a way that the spring is stretched upward a distance 1.00 cm beyond the undisturbed length. When the object is released, determine how far will it dr
Determine the electron-geometry type and shape molecule for CH3CH2CN? Determine how many electron domains are in CH3CH2CN?
Two broad, square, metal plates having sides L and a small separation d carry opposite charges Q and -Q. Find out the energy stored in the configuration?