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a. Solve for the minimum volume of soil that will be excavated in cubic yards?
b. If each dump truck can transport 18 cubic yards, determine how many dump trucks loads will be transported? For calculation purposes, add a 15% ?fluff factor? (add to the volume that will be transported).
c. If the bulk density of soil is 1350 kg/m3 (84.3 lb/ft3), solve for the weight of the Soil sampling results indicated the area impacted with arsenic above action levels is 30 feet by 55 feet. The depth of the arsenic plume is three feet below ground surface. soil that will be transported to a disposal site in kilograms?
What was the chemical reaction in the body, and what substance in the liver was produced to help catalyze the reaction?
A chemist prepares a sample of hydrogen bromide and finds that it occupies 252 mL at 70C and 464 Torr. What volume would it occupy at 0C at the same pressure.
A voltaic cell employs the following redox reaction: 2Fe3+(aq)+3Mg(s)--> 2Fe(s)+3Mg2+(aq+ Calculate the cell potential at 25 under each of the following conditions.
One important daughter nucleus produced in the decay of Tellurium-132 is Iodine-132 which has a half life of 2.3 hours. What will be the count rate for a sample of Iodine-132 separated 9.3 hours after the preparation of a fresh source of Tellurium..
What is the fractional conversion of ethane? b) What is the production rate of ethanol?
The vapor pressure of pure methyl alcohol at 19 degrees celcius is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal.
Bombardment of boron-10 with a neutron produces a hydrogen-1 atom and another nuclide. What is this nuclide
Twenty-five mL of 0.150 M hydrofluoric acid, HF, is titrated with 0.100 M potassium hydroxide. What is the pH of the acid initially (before any base is added)?
What is the vapor pressure of CS2 (in mm Hg) at 15.0C. Carbon disulfide, CS2, has Pvap = 100mm at -5.1 C and delta Hvap = 28.0 kJ/mol.
Suppose two soap bubbles, one smaller than the other, are each attached to ends of glass tubes as well as the tubes are connected via a stopcock. While the stopcock is opened, will the bubbles change in size, and if so, which will grow
Consider a diploid cell that contains three pairs of chromosomes designated AA, BB, and CC. Each pair includes a maternal and a paternal member (e.g., A^m and A^p.).
calculate the amount of solute (g or mL needed to prepare the following solutions: a) 150 g of a 40.0%(m/m)LiBr solution. b) 450 g of a 2%(m/m) KCl solution. c) 225 mL of a 15%(v/v) isopropyl alcohol solution
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