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Because molecular bromine is a strong and toxic oxidant, excess bromine is neutralized. Addition of the aqueous sodium thiosulfate is used for that reason. Sodium thiosulfate is a good reducing agent and converts molecular bromine to sodium bromide. The thiosulfate anion is converted to sulfate anion in the process. Omitting the sodium spectator ions, write and balance the oxidation and reduction half-reactions that are occurring. (You may use H2O/H+ to attain atom balance)
In a titration experiment 26.1 mL of 0.807 M HCOOH neutralizes 22.7 mL of Ba(OH)2. What is the concentration of the Ba(Oh)2 solution
What mass in kg of NH3 must be used to produce 1.8 106 kg HNO3 by the Ostwald process, assuming 100% yield in each reaction?
Describe what data you need to collect and how you will use it to identify the metal cations present in the sparklers.
A buffer is prepared by mixing 0.2 mole of HCOOH with 0.3 mole of NaHCOO in a volume of 200 ml. How many grams of NaOH must be added to achieve ph of 4
1.50 g of nh3 react with 2.75g of o2 which is the limiting reactant? How many grams of excess remain after the limiting reactant is completely consumed?
When ammonia is added to nickel ions in aqueous solution, the water molecules bound to the Ni2+ are replaced by ammonia molecules.
The solubility of AlF3 is 6.7 g AlF3 per liter of solution. The density of a saturated AlF3 solution is 1.0 g/mL. The Ksp of AlF3 is
if the walls in a room are 955 square feet in area and a gallon of paint covers 15 square yards how many gallons of
A 12.00 milk chocolate bar is found to contain 9.200 of sugar. What will be the amount of sugar in milligrams if the size of the chocolate bar is reduced from 12.00 to 5.000
When sodium chloride is added to the solution, no precipitate forms. when sodium sulfate is added, a precipitate forms. this precipitate is filtered of and sodium carbonate is added to the solution
If a salty crude sample was analyzed to have 110.6 ppm salt, calculate the pounds of salt per 1000 bbls of crude
Pure water containing no arsenic was spiked with .40micrograms arsenate/L. Seven replicate determination gave .39 ,.40, .39, .41, .36, .35,.and .39 microgram/L. Find the mean percent recovery of the spike and the concentration detection limit
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