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For the titration of your sample you put 0.0997 g of Aspirin in your flask. Pretend that the concentration of standardized NaOH solution is 0.0968 M. Predict the volume (in mL) of NaOH you will use in this titration. ( Answer to two decimal places)
A lactic acid/lactate ion buffer solution contains 0.29 M HC3H5O3- and 0.80 , respectively. The Ka value of lactic acid is 1.4x10^-4. Calculate the pH of the buffer.
If phenolphthalein is used as an indicator for titrating Ca(OH)2 with titrant HCl instead of methyl orange, which is the recommended indicatory
what are the goals of this project. please answers have to be related to chemistry and specifically to this experiment.
What quantity of useful work can be obtained when Mg is added directly to the beaker of HCl. How can you harness this reaction to do useful work
What is the percent yield for the reaction? TiO2 (s) + 2C (s) ? Ti (s) + CO (g)
The following reaction takes place in acidic conditions under rigorous heating. Complete the reaction mechanism adding missing atoms and using lone pairs, charges, and curved arrows as necessary. Ignore hydrogen sulfate in boxes 2 and 3.
A galvanic cell is composed of these two half cells, with the standard reduction potential shown: Co2+(aq) + 2e- Co(s) -0.28 volt Cd2+(aq)+ 2e- Cd(s) -0.40 volt The actual concentrations are: Co^2+(aq) = 0.00100M, Cd^2+= 0.100M. What is the p..
Why shouldn't you use a sample that has been melted andresolidified to confirm a melting point? e) A sample of an unknown compound has an melting point of145-154C. What conclusions would you draw? What actions would youtake?
Seawater has a concentration of 400 ppm Ca. You wil first prepare a 10-fold diluted Buzzards Bay seawater solution (40.0 ppm Ca). Pipet 10.00 mL of Buzzards bay seawater into a 100.0 mL volumetric flask and fill to mark with deionized water
processes releases energy to be used by a cell?
Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
For this question imagine that sea water is a 3.5 mass % solution of NaCl with a density of 1.00g/mL. Assume full dissociation of the NaCl. a) Calculate the freezing point of sea water. Briefly explain why it is not 0 (degrees Celsius).
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