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A piece of pure aluminum is placed in contact with a piece of pure copper. At what temperature should diffusionoccur for the concentration of copper in aluminum to be 600 kg/m^3 at a depth of 0.2 mm after 10 hours? Pure copper has an effective concentration of 8,940 kg/m^3
why does hydrochloric acid and acetic acid have the same equivalence, while hydrochloric acid and sulfuric acid
How should the two heats of reactions for the neutralization of NaOH and the two acids compare? Why?
which pair of compound form a hemiacetal.
What happens if student forgets to rinse the buret with a small portion of EDTA solution. (Buret contains water droplets from washing.) If this incorrect concentration of EDTAis used to calculate the ppm CaCO3
what do the bond angles of water suggest about the hybridization state of the oxygen atom of water?
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
If a solution of sodium chloride contains 5.2 NaCl in 900 grams of water. What is the concentration of the solution in parts per million?
Perchloric acid with an aqueos solution of ammonia and nitrous acid with lithium hydroxide
If the volume of ocean water 5.4*10^20) contains 4.1 percent sodium chloride ("salt") by mass and the density of the water is 1.86 g/mL, calculate the total mass of sodium chloride.
Draw the lawis structure and structural formulas for CCl3F. Sketch the space-filing model and the charge-density model for this molecule.
barium metal crystallizes in a body-centered cubic lattic. The unit cell edge length is 502 pm, and the density of the metal is 3.50 g/cm3. Using this information.
Determine the volume of CO 2 at a temperature twenty two degree Celsius and a pressure of 781 mmHg could be absorbed by 327 grams of Lithium hydroxide LiOH?
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