Chemistry > Lab Report > Creighton University - CHEMISTRY 203Copy of pH Virtual Lab (All)

Creighton University - CHEMISTRY 203Copy of pH Virtual Lab

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pH Virtual Lab WHAT ARE ACIDS AND BASES? Acids and bases are two kinds of special chemicals. Almost all liquids are either acids or bases, which is determined by the type of ions in them. An acid h... as many hydrogen ions, and splits apart in water to release these hydrogen ions. On the contrary, bases have hydroxide ions that combine with hydrogen ions. Scientists us a pH scale to determine whether a liquid is an acid or a base. PH refers to hydrogen ion concentration, which is measured by a scale. The scale goes from 0- 14, where liquids having a pH level of 0-7 are acids, and 7-14 are bases. Any substance with a pH level of 7 is considered neutral. IMPORTANT QUESTIONS: What substances are acids/bases? How are all acids/bases similar? What happens to the pH level of substances when it is diluted? INSTRUCTIONS: Using the basic pH scale simulation on the PhET website, we will explore and answer the important questions of this investigation. We will gain experience using a virtual pH scale, and test the pH levels of different substances in order to determine them as an acid or base. Based on our results, we will analyze how the discovered acids are similar, and discovered bases are similar. We will use our discoveries to explore and understand how pH levels of substances are affected when diluted. Explore 1. Click on the following link to access the simulation: https://phet.colorado.edu/en/simulation/ph-scale-basics Your page should look like this [Show More]

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