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The vapor pressure of bromine at 9oC is 113 mm Hg; at 20oC it is 184 mm Hg. Determine the a) heat of vaporization of bromine b) vapor pressure of bromine at 50oC
Mendeleev also predicted the existence of eka-manganese, which was not experimentally confirmed until 1937 because this element is radioactive and does not occur in nature. Based on the periodic table shown in Figure, what do we now call the eleme..
benzoic acid in water is 6.8g per 100ml at 100 degrees c, and .34 per 100ml at 25 degrees c. calculate the minimun volume of water needed to dissolve 1.00g of benzoic acid.
if the vapor pressure of an aqueous solution of ethylene glycol c2h6o2 62.06844 gmol was found to be 52.3 torr at 39.8
At what velocity (m/s) must a 15.9 g object be moving in order to possess a kinetic energy of 1.0J?
Given the following BALANCED equation: 2CO + 2NO --> N2 + 2CO2
While making a methyl butanoate ester, and after we were done heating it up, we filtered it with water and NaHCO3. What gas escaped during the sodium bicarbonate washing?
6.00 mL of this solution was mixed with 77.00 mL of a solution of potassium nitrate and 68.70 mL of a solution of ammonium chloride. What is the molarity of Nacl in the final solution?
Consider a voltaic cell at 25o C consisting of a Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell ([Pb2+] and [Mn2+] are 1.0 M). If you want to convert this voltaic cell into an electrolytic cell, how many volts must you supply
suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 24 Celsius, what volume will the Cl2 occupy at STP
Glass tempering can be accomplished by both thermal and chemical means. Each puts the near surface region of the glass piece into compression, thereby suppressing growth of surface cracks.
Describe one of the natural radioactive decay series that begins with uranium or thorium. Include the likely end product and the number of alpha decay steps.
A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. What is the pH of the resulting solution
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