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Why does tellurium have an endothermic electron affinity? In other words, why would it take energy to add an electron to it?
The equivalence point is reached after addition of 25.0 ml Naoh a) calculate the ionication ka for the acid HA
What mass of barium sulfate is produced when 100.0 mL of a 0.100 M solution of barium chloride is mixed with 100.0 mL of a 0.100 M solution of iron(III) sulfate.
produces carbon dioxide and water. After 5.6 of ethanol (density = 0.789 ) was allowed to burn in the presence of 12.5 of oxygen gas, 3.10 of water (density = 1.00 ) was collected. Determine the theoretical yield of H2O and the percent yield for th..
A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode immersed in an NaCl solution, with Cl2 gas bubbled around the electrode. The two beakers are connected with a sa..
initially a 1.0 l container is filled with 2.0 mol of no2. as the system approaches equilibrium what happens to the
The percentage of an additive of gasoline was measured six times with the following results: 0.13, 0.12, 0.16, 0.17, 0.20, 0.11%. Find the 90% confidence level interval
Describe how you would prepare a 500 mL of a solution which is 0.500 M sodium and 1.60 M phosphate if you only had sodium chloride and potassium phosphate available
compare the stabilities of each of the four conjugate bases that would be formed from the doprotonation of the four different OH groups and determine which of hte OH is most acidic.
an aqueous solution containing 21.6 mg of vasopressin in 100.0 ml of solution has an osmotic pressure at 25.0 oc of
Draw the side reactions that occur in the preparation of tert-butyl chloride from tert-butyl alcohol. One is involving isobutylene and the other is ethyl tert-butyl ether
What is the dry basis concentration of carbon dioxide using the concentration data given below. Conc. CO2 (Wet) = 15.4% and Conc. H2O = 4.3%
Sulfur dioxide (SO2) is an unwelcome result of burning soft coal in power plants. Some of the SO2 ends up as sulfuric acid in acid precipitation.
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