You can use your knowledge of pH of household substances to determine the identity of the puddle.
1. Test the pH of each substance listed: A. Label each of five wells of the Chemplate with the substances listed. B. Put three drops of the labeled substance in the wells of your ChemPlate. C. Use a commercial strip, universal indicator, or purple cabbage juice to determine the pH of each substance.
Record your results on the table below:
2. Test the pH of the crime scene puddle by following the same steps.
Record your results on the table below:
3. Based on your observations, what substance is crime scene puddle? Explain your reasoning.
4. Which suspect(s) could possibly be implicated by this evidence? Why?