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Tantalum 180.9479 g/mol has a body centered cubic crystal structure with an edge length of 330.58 pm as well as a density of 16.634 g/cm3. Utilizing this info, Compute Avogadro's number.
As part of a soil analysis on a plot of land, you want to determine the ammonium content using gravimetric analysis with sodium tetraphenylborate, Na B(C6H5)4-. Unfortunately, the amount of potassium, which also precipitates with sodium tetrapheny..
A gaseous mixture of NO2 and N2O4 is in equilibrium. If the concentration of N2)4 is 5.3 x 10^-5 M, what is the concentration of NO2? 2 NO2 (g) ==> N2O4 (g) Kc = 170
Draw the skeletal structure, where each atom obeys the octet/duet rule and no atom possesses a formal charge, for the molecule whose condensed structure is
If an organic compound contains 58.8% C, 9.80% H, and 31.4% O and it has a molar mass of 204g/mol. Compute the empirical and molecular formulas of the compound
You set off from the bottom of the pile in a space craft that can travel at the speed of light (3.00 x 10^8 m/s). How long, in years, will it take you to reach the top of the pile of pennies? Show all work.
Which of the following reactions is (are) oxidation-reduction reactions? Explain your answer briefly.
The freezing point of mercury is -38.8 C . What quantity of energy, in joules, is released to the surroundings if 1.00 mL of mercury is cooled from 23.0 C to -38.8 C and then frozen to a solid
What are the van't Hoff factors of C2H5OH (no dissociation), NaCl (full dissociation), Na2CO3 (full dissociation) and H2SO4 (64% dissociation)
Treat 250.0 g of Ca3(PO4)2 with 150.0 g of H2SO4. How many grams of superphosphate could be formed?
nitrogen gas was collected over water at a temperature of 40 degrees C, and the pressure of the sample was measured at .796 mmHg. if the vapor pressure of water at 40 degrees C is 55 mmHg, what is the partial pressure of the nitrogen gas?
solution of H3PO4 and you want to completely react it with KOH. How many ml of a .462 M KOH solution do you need to accomplish this? How many grams of the two products do you produce?
Indole is a competitive inhibitor of chymotrypsin. In the absence of the inhibitor, chymotrypsin will very slowly hydrolyze glycine residues in proteins, but will hydrolyze aromatic amino acids. In the presence of indole
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