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A scientist has a sample of gas that was collected several days earlier. The sample has a volume of 392 cm3 at a pressure of 0.987 atm and a temperature of 21°C. On the day the gas was collected, the temperature was 13°C and the pressure was 0.992 atm. What volume did the gas have on the day it was collected?
Given that the pKa for Acetic Acid is 4.77, calculate the expected pH of the buffer solutions using the Henderson-Hasselbalch equation and the concentrations of Acetic Acid and Acetate added to the 250 ml Erlenmeyer flask.
Calculate the PH of this solution.
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.
The addition of H2 to C=C double bonds is an important reaction used in the preparation of margarine from vegetable oils.
What is the pH of a solution that has a formic acid (HCHO2) concentration of 0.39 and a potassium formate (KCHO2) concentration of 0.12? The Ka for formic acid is 1.7 x 10-4.
Erythro-2,3-dibromo-3-phenylpropanoic acid undergoes eliminiation by an E1 pathway in water solvent (Part A conditions),
Calculate the percent population of the first 10 rotational energy levels for HBr (rotational constant B = 8.46cm^-1) at 298K?
When determining the acid content in prepared yellow mustard by adding NaOH and water, how do you find the mass of CH3CO2H reacted?
briefly explain how you will isolate p-tert-butylphenol after you have extracted it into NaOH solution.
The mass of a cube of iron is 324 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
The organic chemical butane (C4H10) will undergo reversible rearrangement to form isobutene (C4H10) with Kc = 2.5 under certain reaction conditions
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