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If a 220mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.11.0 , what is the average thickness of the sheet in meters.
Match each item in Column A with the corresponding item in Column B regarding the processes of nitrification and denitrification: Column A Column B a. NH4+ i. Electron acceptor for denitrification
How many orbitals correspond to each of the following designations?
Given that the Ka of boric acid is 5.8x10^-10M, what is the pH of a 0.50M boric acid solution? Are there any good approximation available?
The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.
Question about Aromatic Compounds, Explain the following: a.) The cycloheptatrienyl anion is antiaromatic, whereas the cyclononatetraenyl anion is planar (in spite of the angle stain involved)
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 6.0 g of silver plating.
if 50.00ml of Ba(OH)2 solution is mixed with 30ml of HBr solution, what is the pH of the resulting solution. (0.1385 M Ba(OH)2 and 0.2050 M HBr).
A 100.-L flask contains a mixture of methane, CH4, and argon at 25C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. Calculate the total kinetic energy of the gaseous mixture.
A car travels at 58.0 miles per hour and gets 12.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.50 hour trip?
One radio station operates on an assigned frequency of 88.1 megahertz while another operates on an assigned frequency of 1460 kilohertz. What is the ratio of the larger to smaller value?
Consider the following equilibrium process at 686°C: CO2(g) + H2(g) CO(g) + H2O(g) The equilibrium concentrations of the reacting species are [CO] = 0.050 M, [H2] = 0.045 M, [CO2] = 0.086 M, and [H2O] = 0.040 M.
Phenylephrine is a nasal decongestant and is the active ingredient in Sudafed, which contains phenylephrine hydrochloride (PEHCL). The conjugate acid (PEH+)
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