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A 100 g cube of iron metal (Cs = 0.45 J/g ?C) at 25?C is put in contact with 50 g of an unknown metal at 125?C. After 1 minute of contact, the two metals reach the same temperature of 75?C. What is the specific heat of the unknown metal?
16.57 The complex [Ni(NH3)6]2+ has a ligand field splitting of 209 kJ·mol-1 and forms a purple solution. What is the wavelength and color of the absorbed light.
A 2.5600g sample of a compound that contains sulfur is analyzed by precipitating all the sulfur as BaSO4. If 1.1756g of BaSO4 are obtained in the analysis, what is the percentage of sulfur in the original compound.
Identify the spectator ions that will form when aqueous solutions of sodium carbonate and silver nitrate are mixed. Answer a. Na+, NO3-, and Ag+ b. Na+ and CO32- c. Ag+ and NO3- d. Na+ and NO3- e. Ag+ and CO32-
a. What is the overall equation? b. Identify the intermediate(s) and catalyst(s), if any. c. What are the molecularity and the rate law for each step?
The molecule, atracurium, is a very complex drug. Atracurium exhibits a very short half-life (20-min). The products of the fastest inactivation process are shown.
Calculate the average speed of an oxygen gas molecule, O2, at 19.0 degrees Celsius.
Draw a representation of the product mixture, assuming that the reaction goes to completion.What is the limiting reactant in this case?
NATS 1750- "The VeLaMiCarb team's approach includes isolating the resulting precipitate, and ultimately burying it in underground vaults impermeable to groundwater." Why is groundwater isolation an important design consideration?
What is capillary action? How does it depend on the relative strengths of adhesive and cohesive forces?
how many moles of H2SO$ must eb used to produce 6.5 mol of water..?? Someone posted this question before and somehow NaOH
Question- a) Show with the aid of a form of the Nernst equation that when using a pH sensitive glass electrode and reference electrode that the measured potential is proportional to pH. Please show all steps.
Discuss why coal in a crushed, granulated, or pulverized form spontaneously combusts? In addition, what health effects are associated with coal dust?
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