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Question- Describe the essential differences between atomic emission and absorption spectroscopy. Feel free to utilize diagrams to clarify your explanation?
I need expert help to solve the above question. Show each and every step.
the lethal inhalation does of sarin for a 200lb person has been determined to be 0.0015 mg. determine the ld50 of sarin
what is the ph after 45.0ml of .1M HCl is added during the titration of 30.0ml of 0.1 Mweak base that has a (kb=5.2 *10^-4)
Scientists are working on purifying PFK-1C from rabbit brain tissue. The rabbit brain tissue was homogenized and centrifuged to remove insoluble material. Next, the soluble preparation was loaded on top of an ATP-Sepharose column.
Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- -> Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)?
Calculate the concentration of the hydronium ion and then the pH in a solution that is formed by combining 300mL of 0.10 M Ca(OH)2 with 300mL of 0.10 M H2SO4? (Ka2 = 1.2 x 10^-2 for sulfuric acid).
An aqueous antifreeze solution is 35.0% ethylene glycol (C2H6O2) by mass.
The molarity of the potassium dichromate is a result of two sequential dilutions. Re- member that you can obtain the dilution factor from the volumes in the dilutions, V2/V1.
How much of the cation that first precipitated remains when the second cation behind to precipitate. Would this fractional procedure be a good separation technique for these ions
A sample of solid ammonium sulfide (NH4)2S, is placed in a closed bulb which is then filled with 0.0150 mol of inert He gas. The pressure of the He at 25°C is 145 mm Hg.
a sheet of steel 1.5 mm thick has nitrogen atmospheres on bothsides at 1200oc and is permitted to achieve asteady-state
In a haloform reaction with chloride, what reaction step is pertinent to the synthesis of molecular chloride?
If 88 J of heat are added to a pure gold coin with a mass of 20 g, what is its temperature change? Specific heat capacity of gold is 0.128 J/g'C
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