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The accompanying figure shows a plot of the logarithm (to the base 10) of the diffusion coefficient versus reciprocal of the absolute temperature for the diffusion of iron in chromium. Determine values for the activation energy and preexponential.
If 5.50 of the unknown compound contained 0.183 moles of carbon and 0.367 mol of H of , how many moles of oxygen, , were in the sample?
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
A solution is prepared by dissolving 14.7 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 56.00 mL of water.
calculate how many grams of the product form when 2.6g of CaO completely reacts CaO(s)+CO 2 (g)?CaCO 3 (s) For the reaction, calculate how many grams of the product form when 2.6g
calculate the number of NaCl formula units formed when 176 Na atoms and 98 Cl2 molecules react?
Did enzyme denaturing affect the active site? what amino acid residue in catalase would change by more basic PH
Calculate the pH of a buffer solution obtained by dissolving 22.0 g of KH2PO4(s) and 36.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.
A 39.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
What is the mass percent of NaCl in a solution obtained by mixing 50g of this solution with 215g of H2O?
The use of an FTIR Transducer has never become commonly used as a detector for HPLC because?
Titration of the newly freed EDTA required 18.0 mL of 0.0210 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
Calculate the effective charges on the I and Br atoms in IBr, in units of the electronic charge e.
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