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What would be the pH of a 3x10-4 M solution of acetic acid (CH3COOH) given its acid dissociation constant Ka = 10-4.75? What are the concentrations of CH3COOH and CH3COO- What would those concentrations be if you added HCl or NaOH to bring the pH to 3.2 or 7.35, respectively
A flask contains 0.110 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
Calculate the mass percent of a NaCl solution in which 110 g of NaCl is dissolved in 2.41 L of water at 25 0C (density = 0.997 rm g/mL).
explain why it is appropriate to group a polyatomic ion in parentheses in a chemical formula, if more than one of that ion is present in the formula.
SO2Cl2 decomposes to SO2 and Cl2 All are gases. .0260 moles of SO2Cl2 are introduced in 1 L bulb at 375K When system reaches equilibrium total pressure in bulb is 1.43 atm. Calculate partial pressures of each gas.
Why is Pyrex glass wool, rather than typical filter paper, used for the filtration of the hot solution of K+, [Al(H2O)2(OH)4]- , excess OH-?
If the molarity of stomach acid is 0.1 M (assumed to be HCl), how many grams of stomach acid will be "consumed" (i.e; neutralized) per gram of the antacid Ca(OH)2. Assume the denisty of stomach acid is 1.02 g/mL
What is the correct method for determining how many moles of calcium oxide are produced in the reaction of 10.g calcium with excess oxygen?
How many minutes will it take to plate out 16.22 g of Al Metal from a solution of Al^+3 using a current of 12.9 amps in an electrolytic cell
The disappearance of X is monitored at timed intervals. Assume that temperature and volume are kept constant. The data obtained are shown in the table below.
At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility at 25 °C and 1470 Torr
calculate the composition of the vapor phase at 25 °C if the vapor above the liquid phase is composed only of 1-propanol and 2-propanol
Determine the following characteristics of the unknown acid: molecular formula, molar mass, Lewis structure.
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