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What is the pH of the solution during the titration when the following volumes of the NaOH have been added to 34.5-mL of the acid.
(1) 27.60 mL
(2) 29.10-mL
(3) 33.15-mL
5.00 mL of water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. write the equastion for the reaction and calcualte the hardness of the water in ppm
the enzyme acetylcholinesterase,which has a turnover rate of 25,000 s-1. Calculate how long it takes the enzyme to cleave one acetylcholine molecule.
Describe the nature and characteristics of PCB s. Why are they of importance to an EH&S or FS professional who encounters them when.
Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120 C. Explain.
What is the molar volume of the oxygen gas at the conditions in the laboratory?
What osmotic pressure would develop across the membrane if the temperature is 26.0 degrees Celcius?
What relationship exists between H+ ion concentration and OH- ion concentration? What is the OH- concentration in an aqueous solution where the H+
What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is 2?
Use IR tables to locate absorption bands of the stretching frequencies of the alkyne C
Determine the molality and molarity of a solution made by dissolving 445 g of NaBr in 2600 ml of water ?
1.50 g of nh3 react with 2.75g of o2 which is the limiting reactant? How many grams of excess remain after the limiting reactant is completely consumed?
If 17.2 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
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