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Using the average volume of iodine from three titrations (17.42mL) and the amount of pure ascorib acid in 10.00mL (0.105g) Calculate the amount of vitamin C in mg that are titrated by one milliliter of the 0.05N iodine solution.
What is the pH of pure water in equilibrium with 1 atmosphere of carbon dioxide at 25?C?
A physician wrote a prescription for Tylenol 325 mg/5mL with codeine 10 mg/5mL, 5mL three times a day for 4 days as needed for cough. How much Tylenol in milligrams is contained in a teaspoonful?
An equilibrium mixture for the reaction above contains [H2] = 0.150 M, [I2] = 0.350 M, and [HI] = 0.500 M. What is the value of the equilibrium constant, Kc, for the reaction?
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
Sodium sulfate dissolves as follows: Na2SO4(s) 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M.
A 2.00-g sample of white solid was vaporized in a 345-mL vessel. If the vapor has a pressure of 985 mmHg at 158°C, what is the molecular mass of the solid?
process it is given that Rubidium has a heat of vaporization =69.0 kJ/mol at its boiling pt= (686°C). Compute ΔS for this process?
Calculate Delta H for the process. Given u ={(2a/RT) - b}/Cp,m; with Cp,m = 38.4j/K.mol; a=3.60dm6 atm and b= 0.44 dm3.mol.
You have 1005.3 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of solvent are in the solution?
Describe the preparation of 12 mL of a 0.050 M solution of each of the halogens, using the reactions in the preceding question. Available to you are solid Ca(OCl)2
For a formaldehyde and bisulfite reaction, discuss in detail the effect of changing the concentration on reaction rate with respect to each reactant
Find the pH of the equivalence point and the volume (mL) of 0.0740 M KOH needed to reach the equivalence point in the titration
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