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You need to titrate 38.2 mL of an acetic acid solution (CH3COOH). (Acetic acid is a monoprotic acid.) You begin your titration with a 0.12 M solution of KOH. After you have added 48.5 mL of the KOH solution, however, you realize that you forgot to add an indicator and have overshot the equivalence point. To neutralize the excess base, you use a second buret to add 10.2 mL of a 0.25 M solution of HCl, which brings the titrated solution back to the equivalence point. What is the molar concentration of the original acetic acid solution?
The Ksp for AgCl = 1.8x10^-10, @25 degrees Celsius. If the goal is to harvest silver ions from a film stop bath, and the plan is to get the silver ion concentration down to 18x10^-12 M, using NaCl, what concentration of Cl- ion, in M is required
A concentration cell contains electrodes made of the same metal and solutions containing the same ions but a different concentrations. Consider Zn electrode in 0.1 M ZnSO4 solution in one compartment and Zn electrode in 1.0 M ZnSO4 for another com..
Determine the functional form of Phi(t) and the frequency of a pendulum bob whose mass is m and is attached to a massess rod of length l. Assume that the bob oscillates in the limit of small oscillations.
Explain how to prepare 0.250 L of a 0.500 M CuSO4 solution. 1. Measure out 0.500 moles of CuSO4 solid 2. Measure out 20.0 g of CuSO4 solid 3. Measure out 0.500 moles of CuSO4 solid and add water until a volume of 1.0 L is reached 4
Calculate the mass of Nitrogen (N2) that will react completely with 6.00g of Hydrogen (H2) to form Ammonia, via the reaction: N2+3H2=2NH3
A metal object with a mass of 19g is heated to 96c, then transferred to a calorimeter containing 75g of water at 18c. The water and teh metal object reach a final temperature of 22c.
Qualitatively, describe how an acid-base indicator works. Why do we want to use a minimum amount of indicator in a titration? Select all that apply.
Construct a neat and compact table, including title and footnotes if required, to summarise the following information taken from rough notes
What is the chlorine flow rate at the reactor pressure and temperature. If the etching rate of silicon is 0.50min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
If there is the possibilty that the container may rupture if the pressure exceeds 8.0 atm, at what temperature is rupture likely to occur?
In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Ch telier's principle
You are concentrating a solution containing a polypeptide of modest molecular weight by pressure filtration through a membrane. The solute concentration on the feed side of the membrane is 0.10 M and the temperature is 25°C.
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