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The concentration of SO2 is .0000044; what is the concentration in PPM?
What is the driving force for losing a proton as the last step in electrophilic aromatic substitution
what happens when phenolpropane sodium bromide and sulfuric acid are refluxed, distilled then seperated
Which of the following processes are spontaneous. (You may select more than one answer.) a. melting of ice at -10°C and 1 atm pressure b. evaporation of water at 30°C when the relative humidity is less than 100 percent c. water + NaCl(s) salt solu..
Back titration with .02127 M Zn2+ at pH 5 reqired 23.54ml to reach the xylenol orage end pt. a 2.00ml sample of unknown was passed thru an ion-exchange column designed to absorb co2+. the Ni2+ that passes thru ion-exchange column was treated with ..
pH of 20.0 mL of 0.10M acetic acid/sodium acetate buffer before and after the addition of 2.0 mL of 0.10 M NaOH; 2.0 mL 0.10 M HCl
Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. Which do you think will be the major product? Explain your reasoning
discuss how to prepare the solution in question A starting from 0.100 M formic acid and 0.150 M sodium formate
Why Do I Require More CaCO3 to Raise pH than Predicted? If you can remember back to a discussion and inquiry we exchanged last week concerning the use of sodium carbonate vs. calcium carbonate
The vapor pressure of liquid chloroform, CHCl3, is 400.0 torr at 24.1°C and 100.0 torr at -6.3°C. What is Hvap of chloroform?
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with accurately known speeds. When HI dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little
A weather balloon has a volume of 450 L when filled with helium at 45oC to a pressure 0.80 atm. What is the new volume of the balloon in an atmosphere where the pressure
Which molecule has only 90° and 180° bond angles and one lone pair of electrons on the central atom. XeF4 SeF4 BCl3 ClF5
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