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One of the significant factors responsible for geologic evolution (esp. erosion) is the pressure developed by the freezing of water trapped in with this space in rock formations. Approximate the maximum pressure that can be developed by water freezing to ice at -10°C. Note that Vice > Vwater, thus the pressure will rise as each bit freezes according to the Clapeyron equation
What mass of sodium nitrate (in g) is required to make 2.50L of a 0.150M solution of sodium nitrate
The PF5 molecule is known to have a trigonal bipyramidal shape. Explanation of its bonding includes all of the following EXCEPT: A. Bond Angles of 90 degrees
A thin plate of copper is suspended in seawater. If the corrosion rate is 0.4 mpy (mils per year) and the plate is a square of dimension 4.0 in. per side, how much weight loss (in mg) is expected in 18 days
Carbon monoxide and oxygen both can bind to hemoglobin, an important molecule for oxygen transfer in our body. In addition, they compete in binding to this same molecule
Calculate the temperature at which H2 may be obtained by spontaneous composition of water. Comment on feasibility of producing H2 by this means
The density of the metal is 8.785 g/cm3 and the specific heat of the metal is 0.425 J / g oC. If the metal foil absorbs 864.7 J of heat as its temperature changes from 21.32 oC to 34.80 oC, calculate the thickness of the metal foil in mm.
A solution of ammonia and water contains 2.70×1025 water molecules and 8.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution
How many grams of ammonium sulfate can be produced if 30.0 mol of H2SO4 react with excess NH3 according to the equation 2NH3(aq) + H2SO4(aq) => (NH4)2SO4(aq).
An unknown element, X, reacts with sulfur to form an ionic compound having the empirical formula (S is sulfur). If the ion X has 21 electrons, identify the element
Stretched rubber band Touch the relaxed rubber band briefly to your upper lip. Quickly stretch your rubber band and immediately touch the stretched rubber band to your upper lip again
What volume of a 0.170 M NH4I solution is required to react with 963 mL of a 0.440 M Pb(NO3)2 solution? How many moles of PbI2 are formed from this reaction?
What is [Pb^2+] in a saturated solution of PbCO3 if Na2CO3,with a common ion is added to give [CO3^2-]=3.0x10^-4 M? PbCO3 Ksp=7.4x10^-14
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