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Element X has two natural isotopes: X-6 (6.015amu) and X-7 (7.016amu). Calculate the atomic mass of element X given the abundance of X-7 is 92.5%.
In 1773 Ben Franklin poured a teaspoon of oil onto a pond. He observed that it spread out to form a film that covered an area of about 22,000 ft2. If a teaspoon has a volume of about 5 cm3 and if the film was roughly one molecule thick, then what ..
Some wastewater has a BOD5 of 150 mg/L. The reaction rate is 0.23/d. What is the ultimate carbonaceous BOD
what is the condensed structural formula for the product of the hydrogenation of 2-butene using a platinum catalyst
suppose that a fully charged lead-acid battery contains 1.50 rm l of 5.00 m rm h2so4. what will be the concentration of
What volume of the solution must be used to make 800 mL of 0.15 M. potassium permangate from a 0.20 M. potassium stock solution.
How many grams of cobalt metal can be formed if a 2.00 amp current is passed through a solution of Co2+ for a period of 20.0 minutes
use average bond energies to calculate delta hrmrxn for the combustion of methane rmch4
Zn + 2HCl → ZnCl2 + H2 If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
What is the total work (in joules) in going from the initial to the final state by way of the preceding two steps? What would be the total work if the process were carried out reversibly?
Calculate the molality of a solution of NaCl if 4.0 kilograms of solution contains 32.0 moles of sodium chloride.
The density of water at room temperature is lass than the assumed 1.0 g/mL used in the calculations for determining the enthalpy of neutralization.
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