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An unkown metal crytallizes in one of the three cubic lattices.The edge length of the unit cell is 408pm.Given that the atomic radius of the metal is 144pm and the density of the solid is 19.3g/cm-3, what is the atomic symbol of the metal? a=2R a=(4/ROOT3)R a=(2ROOT2)R
The nitrate ion (NO3-) is a very poor nucleophile. In fact, solvents such as water or methanol (also weak nucleophiles) are more reactive nucleophiles than the nitrate ion
a solution made from 6.50g of an unknown compound in 27.8g of diphenyl has a molality of .195m. Calculate the molar mass of the unknown.
a tanker truck carrying 6.05times103 kg of concentrated sulfuric acid solution tips over and spills its load. the
To help you explain your answer, look up the meaning of "isoelectric point" and discuss the effect that pH will have on the structure of your product.
A voltaic cell employs the following redox reaction: Sn^2+(aq)+ Mn(s)--> Sn(s) + Mn^2+(aq) Calculate the cell potential at 25 under each of the following conditions.
What mass (in grams) of O2 is contained in a 555 mL volume at a pressure of 760.0 torr, and at a temperature of 400.0 K?
Here are the solubilities of a particular solute at two different temperatures. Temperature (c) Solubility (g/100 g h2o) 20.0 42.0 30.0 86.0 Suppose that you have made a saturated solution of this solute using 47.0 g of water at 20.0 °C. How much ..
Calculate the work done if a gas is compressed from 7.7 L to 1.3 L at constant temperature by a constant pressure of 2.6 atm, and give your answer in units of joules. (1 L · atm = 101.3 J) J In the above example, work is being done by what?
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
a gas is enclosed in a cylinder fitted with a piston. the volume of the gas is 2.00 l at 1.00 atm pressure. the piston
Determine the entropy change when 5.60 mol of HCl(l) boils at atmospheric pressure with the following information
consider the following equilibrium process at 686degcco2g h2g cog h2ogthe equilibrium concentrations of the reacting
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