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If a sample of impure KHP is composed of 30.00 wt% KHP and 70.00wt% inert matter, calculate the amount of the impure sample one should weigh out on the analytical balance in order to titrate 25.00 mL of a 0.1000M solution of NaOH. Use dimensional analysis.
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.39, what was the original concentration of the acetic acid
in a .1000 M NaOH solution, 20.76 mL of the NaOH solution were required t neturalize completely 13.15 mL of the malonic acid solution; what is the molarity of the malonic solution?
what is the theoretical yield of nitrogen in grams from part (a)? c) if the actual yield of nitrogen in the reaction in part (a) is 30.3g calculate the percent yield.
A blood-volume determination was carried out on a patient by injection with 20.0 mL of blood that had been radioactively labeled with Cr-51 to an activity of 4.10 microCi/mL.
determine the errors if any with each galvanic cell set-up when the anode is on the left. select all that
a 255 ml round bottom flask is weighted and found to have a mass of 114.85g. a few milliliters of an easily vaporized
Calculate the pH at each point listed for the titration of 25.00 mL of 0.1000 M formic acid with 0.1000 M KOH. The points to calculate are Vb = 0.00, 12.50 and 25.00 mL
The gas from a certain volcano had the following composition in mole percent (that is, mole fraction multiplied by 100). 56.0% CO2, 34% H2, 5.4% HCl, 2.4% HF, 2.1% SO2, and 0.1% H2S What would be the partial pressure of each of these gases if the t..
a 10.0 ml sample of liquid bleach is diluted to 100. ml in a volumetric flask. a 25.0 ml aliquot of this solution is
Why are the standard reagents used in neutralization titrations generally strong acids and bases rather than weak acids and bases?
Which of the following sets of quantum numbers or electron configurations cannot exist in a hydrogen atom? Why? a) n=2, l=2, m1=0 b) n=3, l=0, m1= -1 c)1p^3 d)3f^6
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