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During a titration the following data were collected. A 20 mLportion of an unknown monoprotic acid solution was titrated with2.0 M KOH. It required 60 mL of the base to neutralize the sample.What is the molarity of the acid?
Have a 2.5L sol'n made up of 0.05M Cl-, 0.0002M Br-, and 0.100M CrO4. you slowly add drops of a 0.5M AgNO3 sol'n. ksp for AgCl=1.8E-10, for AgBr=4E-13, and for Ag2CrO4=1.2E-12
A 2.0 L-reaction flask initially contains 0.04 mol CO, 0.23 mol H2, and 0.60 mol CH3OH (methanol). If this mixture is brought in contact with a zinc oxide-chromium(III) oxide catalyst, the equilibrium shown below is attained.
When 5.25 g of sodium oxalate is reacted with 5.25 g of calcium chloride, how many grams of sodium chloride and calcium oxalate are formed?
The following molecular equation represents the reaction that occurs when aqueous solutions of lead(II) nitrate and barium iodide are combined. Pb(NO3)2(aq) + BaI2(aq) PbI2(s) + Ba(NO3)2(aq)
Neither serine nor leucine are eluted from the column because the pH of the elution buffer is too low. C. Neither serine nor leucine are eluted from the column because the pH of the elution buffer is too high. D. Leucine will elute first, followed..
A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma
You are given the following boiling point data: Which of the liquids would you expect to have the highest vapor pressure at room temperature
a fishing boat accidentally spills 9 barrels of diesel oil into the ocean. each barrel contains 42 gallons. if the oil
the antifreeze in a car was a 50 by weight solution of ethylene glycol c2h6o2 in water. calculate the boiling point and
A compound is composed of nitrogen (87.4% by mass) and hydrogen. a gaseous sample H2+N=NH2 has a density of 9*10^-7kg/mL at 600 torr and 150C
Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 21 degrees Celcius.
A student titrated 10mL aliquots of her unknown amino acid solution with standard 0.1521M NaOH and with 0.0986M HCl. Inflection points were determined in the graphs after 18.62mL of NaOH and after 3.29mL of HCl was added. What's the concentration ..
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