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2 students are titrating and started the titration at 30.0 mL. The buret was at 49.50 mL and the solution still had not chnaged to the base color. They stopped, now at 49.80 mL and refilled the buret to 0.00 mL and continued to titrate. The solution then turned color at 14.55 mL. 1. Calculate the amount of solution used from the buret 2. Explain how this situation could be avoided
What is the [H3O+] of a solution that is 0.0100 M in HOCl
Choose the selection which lists the following substances in order of increasing boiling point (lowest boiling substance listed first)
Using a table of thermodynamic data calculate, the Delta H degrees for the following reaction (at 25 degrees C).
A solution is made by adding 50.0 mL of ethanol (C2H5OH, d = 0.789 g/mL) to 50.0 mL of water (d = 0.998g/mL). What is the total vapor pressure over the solution
A 0.50g sample of vegetable oil is placed in a caloriemeter. When the sample is burned 18.9kj are burned off. What is the caloric value in kcal/g of the oil? I am not sure how to set this problem up. Please help
Determine what is the exact volume of the 250-mL Erlenmeyer flask express your answer (in mL)?
A student measures the volue of acetone delivered by a 5 mLvolumetric pipette several times and obtains volumes of 4.98, 4.95, 4.86, 4.91 and 4.90 mL. The average volume delivered by the pipette is 4.92 mL. What is the deviation of the first measu..
2.0 mL ethanol with 1.0 mL ethylene glycol (HOCH2CH2OH) calculate the theoretical vapor pressure at room temperature for the solution above. using raoults law
What would be the pH of a 3x10-4 M solution of acetic acid (CH3COOH) given its acid dissociation constant Ka = 10-4.75? What are the concentrations of CH3COOH and CH3COO-
find the molecular formula for a compound with the empirical formula ch2o. the molar mass of the compound is 180.2 g/mol
For the titration of 25.0 mL of 0.20 M hydrofluoric acid with 0.20 M sodium hydroxide, determine the volume of base added when pH is 2.85
A solution containing Pt4+ is electrolyzed with a current of 5.00 A. How long will it take to plate out 77% of the platinum in 0.50 L of a 0.010 M solution of Pt4+?
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