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Element X crystallizes in a body-centered cubic lattice. Its atomic mass is 59 amu. The edge length of a unit cell of X is 0.28A. Calculate the radius of an X atom and the density of X ing/cm3.
a current of 3.87 a is passed through a crno32 solution for 1.10 hours. how much chromium is plated out of the
Find the theoretical yield for the following synthesis of ferrocene. 2KOH + 2C5H6 + FeCl2(H2O)4 --> Fe(C5H5)2 + 2KCl + 6H2O 25gKOH are in the reaction 5.5 mL C5H6 are used in the reaction
How many grams of oxygen gas (O2) will it take to oxidize 1 pound of iron metal? Make sure to show the redox reaction and all work.
Calculate the molar concentration for each of the following solutions. 1.) 4.00g KCl in 70.0mL of solution 2.) 4.00g NaCrO4 in 70.0mL of solution
a gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 265 mmHg; Ar, 121 mmHg; and )2, 168 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
cadmium telluride cdte takes the zinc blende structure with aunit cell edge length of 6.49 angstroms. there are 4
What is the central atom for CO2, how many bonds are formed, is it polar or nonpolar, what's the direction of electronegativity
For each hydrocarbon, determine the percentage of hydrogen by mass. By comparing your answers for parts (b) and (c), propose a relationship between hydrogen content and fuel value in hydrocarbons.
Compute the heat amount required to heat a 3.9kg gold bar from 28 degree Celsius to 68 degree Celsius. Given Specific heat capacity of gold = 0.128 J/g°C.
What salt is produced in each of the following neutralization reactions?
Is density of an organic molecule directly related to the molecular weight of a substance. (That is, does density always increase when molecular weight increases) Use the examples above to explain.
what is the final mass upon mixing 8.54 mL of HCl and 8.54 mL of NaOH, both solutions have an initial concentration of 2.00 M.
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