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How can you identify the second ionization of an element? for example aluminum. How do you tell the difference between the first and second ionization energy?
As a result of a chemical spill, benzene is evaporating at the rate of 1 gram per minute into a room that is 6 m * 6 m * 3 m in size and ahs a ventilation rate of 10m^3/min. Compute the steady-state concentration of benzene in the room.
What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?
which are hybrid orbital the carbon at the following molecules a, H3C-CH3 b, H3C-CH= CH2 c, CH3-C Tripl bond C-CH2OH d, CH3CH=O
Chloroform, CHCl3, was once used as an anesthetic. Its vapor pressure is 197 mm Hg at 23 degrees Celsius, and 448 mm Hg at 45 degrees Celsius. Estimate its heat of vaporization and normal boiling point.
Identify the major type of attractive force between particles of each of the following substances: a) HCl; b) MgF2; c) PBr3; d) Br2; e) NH3.
when 31 mL of 0.200 M HCl has been added to 39 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3
Arrange the following gasses in order of increasing density under the conditions given. a. Neon at 2 atm and 273 K b. Neon at 1 atm and 273 K c. Helium at 1 at and 273 K d. Neon at 2 atm and 73 K
Question- Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HClO(aq) with 0.100 M KOH(aq).
Problem- Discuss why the 2,4-Dinitrophenylhydrazone derivative of 2-butanone probably cannot be identified by melting point analysis. What problem is anticipated
ß-D-Glucopyranose (ß-D-Glucose) and dissolved oxygen are converted by the enzyme glucose oxidase into D-Gluconic acid, and an inorganic byproduct. This reaction is used to measure the glucose-content in blood. What is the inorganic byproduct
A solvent for an industrial process requires the use of phenol or benzene. Both are about the same in effectiveness for the process, and of course, gloves will be used when handling either solvent
A solution is colorless in phenolphthalein and blue in bromcresol green. Therefore we can conclude that the pH of the solution
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