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Compute the number of electrons in a flake of pure gold valued at $0.44. Assume that the price of gold is $1630.0/troy oz. (1 troy oz = 31.1 g)
Disadvantages of using a craig tube in a recrystallization?
Gas A2 reacts with gas B2 to form gas AB at a constant temperature. The bond energy of AB is much greater that that of either reactant. What can be said about the sign of pH, pSsurr, and pS
solution containing the iron(II) thiocyanate complex is 0.45, Then calculate the mile per liter concentration of the complex
where the atmospheric pressure is 1.00 atm. the balloon rises to an altitude of 20,000 m where atmospheric pressure is 65 mmhg and the temperautre is 210k. What is the volume of the balloon at 20,000m?
how to distinguish the difference between oxidizing agent and reducing
Consider an ordinary 8 fluid oz. glass of water (H2O). Suppose, hypothetically, that all of the water molecules in the glass could be marked.
a nitrogen molecule is confined in a cubic box of volume 1.00m3. assuming that the molecule has an energy equal to
An iodine solution of unknown molarity was titrated against a 0.001M solution of S2O3^2-. The blue black iodine-starch complex just disappeared when 20.2 mL of thiosulfate was added. What is the exact molarity of the I2 solution.
What volume of 1.00M HCl in liters is needed to react completely (with nothing left over) with 0.750L of 0.100M Na2Co3
what is the change in internal energy of a system that absorbs 0.570 kj of heat from its surrounding and has 0.843 kcal of work done on it give in scientific notation
The free radical bromination of ethane includes all of the following in the reaction mechanism EXCEPT
according to the following reaction how many grams of ammonia will be formed upon the complete reaction of 30.1 grams
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