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1. In a plot of absorbance verus time, what are the units for the slope? 2. Assuming a pathlength of 1 cm, divide the answer to question 1 by an extinction coefficient. What are the new units?
What is the pH of a solution to which 35.0 ml of .20 M HCl and 50.0 ml of .42M NaOH have been combined
Two compounds have the same empirical formula. one substance is a gas, the other is a viscous liquid. how is.. it possible for two substances with the same empirical formula
measured in a 1.00-cm pathlength cuvette, has an absorbance of 0.321 while the reagent blank in the same cuvette has an absorbance of 0.014. What would be the absorbance reading of these two solutions if measured in a cuvette with 5.00 cm pathleng..
As a solid, Ag adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ag
Draw a Lewis structure for each of the following molecules, and then use the VSEPR theory to predict the molecular deometry of each.
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range.
A solution is prepared by dissolving 6.00g of unknown nonelectrolyte in enough water to make 1.00L of solution. the osmotic pressure of this solution is 0.750 atm at 25.0 C. what is the molecular weight of the unknown solute ( R= 0.0821 L.atm/K.mo..
Put the following acids in the order of increasing acidity and please explain reasoning CCl3COOH, CH3COOH, CF3COOH
What is the mass percent of Ca in the alloy. The unbalanced equations are given below. (Hint: Let x = mass of Ca in the alloy in grams
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
Imagine that you have a 5.50 L gas tank and a 2.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
The first-order decomposition of N2O5 proceeds as follows: 2 N2O5 (g) → 4 NO2 (g) + O2
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