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Preparing a 0.050 M buffered solution using a conjugate weak acid/weak base pair. You will prepare 100 mL of buffered solution with pH = 7. The formal concentration of this buffer should be 0.050 F (i.e., the total concentration of the weak acid and its conjugate base is 0.050 M)
Sodium phosphate monobasic and sodium phosphate dibasic
What is the vapor pressure of a solution with a benzene to octane molar ratio of 2:1. (benzene= 280 mmHg ; octane= 400 mmHg)
Write the equations for the following reversible systems A) solid KMnO4 in a saturated aqueous solution of KMnO4 B) a mixture of solid and gaseous forms of CO2 in a closed container
Write the expression for the reaction rate in terms of d[NOCl]. c. The concentration of NOCl drops from 0.580 M to 0.238 M in 8.00 min. Calculate the average rate of reaction over this time interval.
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
Question- At 22 °C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.70. What is the Ksp of the salt at 22°C.
Calculate the amount of heat, in kJ, needed to convert 15.0 g of ice at -21 C to liquid water at 75 C. Specific heat of ice = 2.10 J/(g C); heat of fusion of ice = 334 J/g; Specific heat of water = 4.18 J/(g C)
You decide 20.1 g of KCl in 1.00 kg of water. The volume of the resulting mixture is virtually identical to the original volume of the 1.00 kg of water.
27.0ml of 0.11 m hclis aded to 0.37 g of a commercial antacid. the solution is titrated with 9.7 ml of 0.09 m naoh to
How many electrons in an atom can have each of the following quantum number or sublevel designations
State the structure of a different product that could have been formed if you utilized ethanol containing substantial amount of water instead of the absolute ethanol utilized in the reaction of bromotriphenylmethane with ethanol
How many grams of water can be cooled from 36 degrees celsius to 23 degrees celsius by the evaporation of 53g of water.
I did three trials and my volumes for the sodium thiosulfate were 12.5 ml, 11.1 ml, and 10.2 ml. I am not sure how to get the molarity of the sodium thiosulfate secondary solution for each trial from this information.
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