On the whole, I would love to be able to use the strips again in all aspects of qualitative chemistry assessment. Universal Indicator Solution: This test is extremely difficult to use effectively when you cannot identify colours across multiple ranges. Unknowns one and five appeared identical as they were both a clear purple solution and were therefore basic. Unknowns two and three also appeared identical as acids, although I could not assign weak or strong status to either. Unknown four was clearly a neutral or weak base as it was clear and either blue or green, but again I could not be sure which to choose because of the colour range. Overall, I found the universal indicator solution to be useful for distinguishing acids from neutrals and bases; however, the colour changed over time: no difference between strong/weak acids or strong/weak bases at first, then no difference between neutral/base and what originally presented as a clear base.