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Equivalent weight of Hydrogen Show how as well as how many electrons are involved in one equivalent of oxidation-reeducation?
The Ogallala aquifer is the largest in the United States, covering 450,000 across eight states, from South Dakota to Texas. This aquifer provides 82% of the drinking water for the people who live in this region
The shielding of electrons gives rise to an effective nuclear charge, Z eff which explains why boron is larger than oxygen. Estimate the approximate Z eff felt by a valence electron of boron and oxygen, respectively
The Label on a one pint bottle of water lists the following components. If the density is the same as pure water and you drink 3 bottles of water in one day, how many milligrams of each component will you obtain?
Calculate the volumes of acetic acid (CH3COOH) and of the acetate (CH3COO-) solution that would be needed to prepare a total volume of 150. mL of buffer. Assume all solutions are 1.00 M. pKa = 4.75.
What are the products of a double displacement reaction involving sodium hydroxide and hydrochloric acid
Thiosulfate was used to mask the copper in a 20.00 mL aliquot. Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the..
A solution of a specific vitamin has ?max = 273 nm and a concentration of 6.51 × 10-7 M. The absorbance of the solution at 273 nm is A = 0.180. What is the molar absorptivity of the vitamin at 273 nm? (sample pathlength = 1.00 cm)
b6. at elevated temperaturessbcl5 gas decomposes into sbcl3 gas and cl2 gas as shown by thefollowing equation.sbcl5
if a temperature increase from 11.0 degrees c to 22.0 degrees c doubles the rate constant for a reaction what is the
Assuming the oil layer to be one molecule thick, calculate the approximate diameter in Angstroms (1 A = 10^-10 m) of a single molecule. (Use volume = area x depth.)
Each hemoglobin combine with 4 O2. If 1.02 g of hemoglobin combine with 1.6 ml of O2 at 37degree c and 724torr. What is the molar mass of Hemoglobin
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
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