Chemistry, 26.10.2020 02:40 mathwhiz9125

Oxalic acid (C2H2O4) is a diprotic acid. A student was testing a lab sample that contained some diprotic acid. The student measured out 2.50 g of the sample and added it to a 250 mL volumetric flask. The student then added water to make it up to 250 mL. The student took out 25 mL aliquot into a conical flask. This was then titrated with potassium hydroxide solution with a concentration of 1.20 M. The following titres were obtained: 15.25 mL, 15.10 mL, 15.00 mL and 15.02 mL. a. Calculate the concentration of oxalic acid in the 25 mL aliquot.

b. Calculate the concentration of oxalic acid in the 250 mL volumetric flask.

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 00:10

Which of the following best describes the formation of plasma?

Answers: 1

Answer

Chemistry, 22.06.2019 12:30

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Answers: 1

Answer

Chemistry, 22.06.2019 17:00

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.

Answers: 2

Answer

Chemistry, 22.06.2019 17:20

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

Answers: 2

Answer

You know the right answer?

Oxalic acid (C2H2O4) is a diprotic acid. A student was testing a lab sample that contained some dipr...

Questions