So, we had some unknown substances in the lab on Thursday and that's never good. So we donned our gloves and glasses and used every tool at our disposal to learn a little bit about these unknown (and potentially harmful?) substances!
Luckily we know about pH indicators and what they can tell us about substances. Using different indicators, we know if we are dealing with acids and bases, as well of the strength of these.
In your lab, you tested 4 unknown substances (A, B, C and D) using
- Methyl Orange
- Indigo Carmine
- Mg metal
- red and blue litmus paper
- Bromothymol Blue
Here are some results from one group -the indicator are in order from left to right.
Using your results or the ones above, answer the Analyze questions 1-4, and Conclude and Apply questions 1,2 and 4 on page 231.
Remember to use the pH indicator charts on page 224 in your text.
This LAB will be due next class.
(remember Lab reports will include 1. problem/question, 2. materials, 3. procedure, 4. data, 5. analysis)
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