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Sodium Borohydride Reduction of Benzophenone start with 0.5g of benzophenone and finished with 1.2g what the percent of yield
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed
Mixing 20.0mL of a 3.00 M sugar solution with 30.0mL of a 5.00 M sugar solution results in a solution with what molar concentration?
What is its solubility at a partial pressure in air of 0.00021 atm? Assume that CO2 obeys Henry's Law.
Calculate the vapor pressure of each component, the total pressure, and the composition of the vapor phase when the mole fraction of Br2 is 0.050. Assume that the conditions of an ideal dilute solution are satisfied at this concentration.
Consider formic acid, HCOOH (Ka= 1.9 x 10^-4) and its conjugate base, HCOO^- with a Kb of 5.3 x 10^-11. Write a net iconic equation for the reaction in aqueous solution between HCOOH and NaOHl, and calculate K.
The value of ?Ho for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with water is ________kJ. 2Na2O2 (s) + 2 H2O (l) -> 4NaOH + O2 (g)
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 91. Include any hydrogen atoms and the charge.
A piece of iodine is added to a dilute potassium hydroxide solution in a disproportination reaction. Write the unbalanced net ionic equation
Gold forms a substitutional solid solution with silver. Compute the weight percent of gold that must be added to silver to yield an alloy that contains 6.5 × 1021 Au atoms per cubic centimeter.
Water (H2O) is easily formed at room temperature (298 K) by igniting a mixture of hydrogen (H2) and oxygen (O2) gasses. Above what temperature will water (H20) vapor predominately revert to its constituent elements (O2 and H2)
In a hydrogen atom, from what energy level must an electron fall to the n = 3 level to give a line at 1.28 micrometers in the infrared region? a. 7 b. 5 c. 6 d. 4 e
The molar stoichiometric ratio of nitrogen produced to ammonia reacted in the reaction equation is one to one, and the mol CO2/mol C6H12O6 = 2. How much (in g mol) (a) glycerol was produced and (b) how much biomass reacted to produce the 52.4 L of..
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