6.03 Calorimetry Lab Report

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Method

A) Prepare a NaOH solution (approximately 0,1M NaOH)

1. Place a clean, dry glass beaker on the electronic scale.
2. Determine the mass of the glass beaker.
3. Tare the scale.
4. Measure out 2g of NaOH pellets into the glass beaker.
5. Determine the mass of the beaker and NaOH together.
6. Rinse a 500 ml volumetric flask with deionized water.
7. Label the volumetric flask so you know which solution is in it.
8. Place a clean funnel into the mouth of a 500ml volumetric flask.
9. Carefully pour the NaOH pellets into the funnel.
10. Use the wash bottle with deionised water to transfer all the NaOH pellets from the glass beaker to the funnel.
11. Rinse out all the NaOH pellets with the wash bottle from the funnel in the volumetric flask.
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Swirl the solution to ensure that the NaOH is properly dissolved in the deionised water.

B) Prepare an Oxalic Acid Solution (approximately 0,05M)

1. Place a clean, dry glass beaker on the electronic scale.
2. Determine the mass of the glass beaker.
3. Tare the scale.
4. Measure out 1,575g of oxalic acid crystals into the glass beaker.
5. Determine the mass of the beaker and NaOH together.
6. Rinse a 250 ml volumetric flask with deionized water.
7. Label the volumetric flask so you know which solution is in it.
8. Place a clean funnel into the mouth of a 250ml volumetric flask.
9. Carefully pour the oxalic acid crystals into the funnel.
10. Use the wash bottle with deionised water to transfer all the oxalic acid crystals from the glass beaker to the funnel.
11. Rinse out all the oxalic acid crystals with the wash bottle from the funnel in the volumetric flask.
12. Add deionized water to the volumetric flask to the 250ml mark on the volumetric flask.
13. Read the volume from the bottom of the meniscus.
14. Swirl the solution to ensure that the oxalic acid crystals are properly dissolved in the deionised water.
C) Measuring pH of HCl Solution (unknown Concentration) with an indicator

1. Pour 20 ml of HCl into a

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