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Question- What are the advantages and disadvantages of a furnace compared with a flame in atomic absorption spectroscopy?
Anyone can tell me how to solve it step by step so that I will be able to understand what is going on?
Determine the equilibrium constant for the following reaction at 298 K. SO3(g) + H2O(g) ? H2SO4(l) ?G° = -90.5 kJ
what is the mole fraction of ethanol in an aqueous solution that is 46 percent ethanol by mass?
1. nitrogen and oxygen gases react to form dinitrogen trioxide gas.nbsp2 n2g 3 o2g 2 n2o3gat a certain temperature and
The maximal level of X allowed in the decontaminated waste stream (underflow of stage 5) is 1.20 ppm.
Which reagent would be best for achieving an E2 elimination of 3-chloropentane? a. C2H5OH b. CH3CO2Na c. NaHCO3 d. NaI
Nitrogen dioxide reacts with water to form nitric acid as well as nitrogen monoxide according to the equation-3NO2(g)+H2O(l)?2HNO3(l)+NO(g) Presume that 3.9mol NO2 and 1.2mol H2O combine and react completely. Explain which reactant is in excess
KBr solution added to this colorless solution will cause pale yellow AgBr to precipitate. List the species, Cl-, NH3, or Br- in order of decreasing stability of the compounds or complexes that they can form with silver and explain your reasons.
what is the pH of the hydroflouric acid solution prior to adding sodium fluoride? (b) how many grams of sodium fluoride should be added to prepare the buffer solution? Neglect the small volume change that occurs when the sodium fluoride is added.
All of the following are physical properties of a substance in a liquid state EXCEPT a.indefinite volume b.definite mass c.not easily compressed d.indefinite shape
Calculate weight percent of Fe in ore titrating with potassium dichromate with the following information:
Consider 2 moles of a onoatomic ideal gas (Cv,m=3R/2) at an initial pressure of 2.0 atm and an initial temperature of 298 K. Assume it expands adiabatically and reversibly until its volume doubles. calculate the expansion ork, the final tmperature..
In ESI, it is very important to regulate the pH of the solution. Therefore, the solution is usually buffered or has added acid. How does the solution pH influence the ionization efficiency and the distribution of charged species formed?
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