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Compute the number of electrons in a flake of pure gold valued at $0.59. Assume that the price of gold is $1102.0/troy oz. (1 troy oz = 31.1 g)
A 357 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 625 mmHg. Calculate the moles of Ar present.
What will be the equilibrium concentration of [H2O] ? What will be the equilibrium concentration of [CO2]? What will be the equilibrium concentration of [H2]?
Determine theoretical yield, limiting agent and excess reagent - How much excess reagent remains after the reaction goes to completion
What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5
determine what is the vapor pressure of a solution made by dissolving 65.4grams ammonia in 259 grams of h2o at 55.0
Bovine serum albumin (BSA) is a biochemically useful protein. A 0.225 gram sample of bovine serum albumin is dissolved in water to make 0.117 L of solution,
what is the molarity of a solution of silver perchlorate agclo4 if 3.2 moles of silver perchlorate is dissolved in 1.5
Eventually, his mother decides to take him to the doctor who diagnoses it as an acute case of middle ear infection (otitis media), and prescribes amoxicillin for his treatment. He weighs 44lb, and the daily dose of amoxicillin for the treatment of..
We have 500 mL of a solution with Ba^(2+)=0.10M. How many grams of LiF must be added to begin precipitation of BaF2? The Ksp of BaF2 is 1.7 x 10^(-6)
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
Explain how you would prepare 500 mL of 2.0 molar stock Tris solution and 500 mL of 0.5 molar EDTA solution. Also explain how you would take your stock solutions and prepare a 100 mL Tris-EDTA buffer (TE buffer) that has a final concentration of 1..
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