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Copper can be drawn into thin wires. How many meters of 34-gauge wire (diameter = 6.304 x 10^-3 in.) can be produced from the copper in 6.95 lb of covellite, an ore of copper is 66.0% copper by mass? (Hint: Treat the wire as a cylinder: V for cylinder = (pi)(r^2)(h); d of copper = 8.95 g/cm^3)
Consider 20.0 moles of CO2 in a 1.0 liter container at 300.0 K. What is the pressure predicted by the van der Waals equation.
Calculate the number of free electrons per cubic meter for copper, assuming that there is one free electron per copper atom. The electrical conductivity and density
A) Colloids are homogeneous solutions. B) A true colloidal particle will not settle out of the dispersing medium. C) Colloidal particles can usually pass through a semipermeable membrane.
What is the pH of a solution containing 45mL 0.1M acetic acid when it is titrated by 0.015M NaOH? The solution is at equilibrium.
The following molecules (ax4y2) all have an octahedral geometry. Select the pairs that contain identical molecules
The atmospheric pressure at the summit of mount mckinley is 575 mmHg on a certain day. What is the pressure in atmospheres and in kilopascals?
In the mammalian system, typical fatty acid synthesized for energy and storage are generally have 16 carbons. However, the typical fatty acid found in breast milk is C12 to C14. Explain how the synthesis of fatty acids in the mammary glands differ..
A suspected case of ingestion of the organophosphate malathion has entered the emergency room. A STAT pseudo cholinesterase produced a very low result. Prior to the initiation of therapy, an erythrocyte cholinesterase is drawn
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
if in a certain experiment over a specific time period 0.0048 mol ph3 is consumed in a 2.0-l container each second of
Explain the type of nonrenewable energy resource used and their short-term and long-term effects on the environment
Determine compound having greater Ksp or compound having smaller Ksp ? compute [Ag + ] when CuI just start to precipitate. What % of Ag + remains in solution at this point?
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