What can he conclude about the pH of each sample?

Understanding pH Levels:

pH is a measurement of how acidic or basic a substance is on a scale of 0 to 14. A pH value of 7 is considered neutral, below 7 is acidic, and above 7 is basic. In this scenario, the individual can conclude the pH levels of the samples based on their properties.

Glass Cleaner:

Based on the presence of ammonia, a common basic ingredient, in glass cleaners, it can be inferred that the glass cleaner will have a high pH value above 7, making it basic. The strong basic nature of ammonia contributes to the alkalinity of the glass cleaner, making it effective in cleaning glass surfaces.

Aspirin:

Aspirin is known to have acidic properties and is commonly used as a pain reliever. Due to its acidic nature, aspirin is expected to have a pH value below 7. The acidity of aspirin can sometimes cause irritation in the stomach when consumed in higher doses.

Sugar Water:

Sugar water, being primarily composed of water, is expected to have a pH value around 7, which is considered neutral. The dissolved sugar in water does not significantly alter the neutral pH of water, making sugar water a neutral solution. This is why sugar water is often used as a simple solution for hydration and sweetness.

These conclusions highlight the importance of understanding pH levels in different substances and how they can impact their properties and interactions with other substances.