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How many grams of copper (lll) nitrate would be produced from 4.30 g of copper metal reacting with excess nitric acid
What is the percent yield if 185 grams of SiO2 are made from 328 g of Cr2O3 by the following equation. 3Si (s) + 2Cr2O3 (s) ---> 3SiO2 (s) + 4Cr (l)
Calculate the freezing and boiling point of the following solutions, assuming complete dissociation. a. 12.0 g FeCl3 in 162 g water
Chlorine gas can be produced commercially by passing an electric current through a con- centrated solution of sodium chloride (brine).
Give a brief discussion of the chemistry of Diels-Alder reactions and why do ENDO products usually predominate
Calculate the equilibrium constant at 24 K for a reaction with ?Ho = 10 kJ and ?So = (-100) J/K. (Don't round unil the end. Using the exponent enlarges any round-off error.)
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 2055
The approximate molarity of this solution will be 0.025 M. You will take 10.0 mL of a 0.0100 M KIO3 solution, dissolve excess amounts of KI in it, and using the Na2S2O3 solution, titrate to the disappearance of the starch I2 color. Using the appro..
Problem- What is the mass (in kg) of air in a square room if the room has walls that are 9.55 feet high and 9.55 long and the density of air is 1.3 g/L
A sample of vinegar has a freezing point depression of 2.0 degrees C. What is the estimated percent by mass of acetic acid in the vinegar? Molar mass of acetic acid is 60g/mol
Write the half reactions and the blanced equation for the galvanic cell: Ag(s) | AgCl(s) | Cl^-(aq) || Cl^-(aq) | Hg_2Cl_2(s) | Hg(l).
copper in salt water near the dischargeof a sewage treatment plant is determined by first seperating andconcentrating
A Why is it an important concept that atoms generally appear in whole number molar ratios to each other in chemical compounds? What does this tell us about the nature of matter?
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