Final answer:
To confirm that distilled ink liquid is pure water, visually inspect for clarity, use a microscope to check for particles, pass the liquid through filter paper, and measure the pH level. Pure water is expected to be clear, particle-free, have no residue on the filter paper, and have a neutral pH close to 7.
Step-by-step explanation:
To demonstrate that a liquid collected from distilling ink is pure water, the student should perform a series of tests to assess its purity. The expected results are based on the fact that pure water is clear, has a pH level around 7(neutral), and contains no visible particles or impurities when examined under a microscope or passed through filter paper.
Visual Inspection: Collect a water sample in a clear bottle and hold it up to the light. Pure water should appear clear with no visible particles.
Microscopic Examination: Look at the water sample under a microscope. If the water is pure, there should be an absence of dissolved particles or other contaminants.
Filter Paper Test: Pour some of the water through filter paper. No sand or other particles should be present on the filter paper if the water is pure.
pH Test: Measure the pH of the water. Pure water should have a pH close to 7.
After conducting these tests, the student should write a report discussing the observations and draw conclusions about the purity of the water. If all tests align with the characteristics of pure water, one can conclude that the liquid collected is indeed pure water.