Instructions Enter your solutions. Then make a hypotheses for each solution. | We're going to measure the pH of some common solutions. But first, hypothesize
whether each solution will be an acid, base, or neutral. Then select it in the
table below.
The solutions listed are suggestions. If you're using a different solution, enter it in the table. ![]()
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Instructions Connect your pH probe to your Arduino. Then connect your Arduino to your computer. Goals Arduino connected
| Next we're going to calibrate your pH probe. Make sure your pH probe is connected to one of the pins labeled IIC
on your Arduino, and that your Arduino is connected to your computer.
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Instructions Calibrate your pH sensor. | Now we're going to calibrate your pH sensor. You'll need a two buffer
solutions. One with a pH of 7 and one with a pH of 4. Here's the procedure
for taking a reading with the pH probe:
Procedure:
pH Sensor 0
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Instructions Record pH measurements for each solution. Goals Value between 0 and 14 for each solution
| Using the same procedure we used to calibrate the probe, record a
measurement for each solution. When you have a value between 0 and 14 for
each solution, you can put away your probe.
Important Always make sure to rinse and dry the probe before storing it in the storage solution.
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Instructions For each of the substances, examine your hypothesis and the experimental results. Then, answer the questions. Goals Answer all questions
Submit your answers
| Below, there's a list of each of the substances we tested along with your initial hypothesis. For each substance explain whether it confirmed or disproved your hypothesis.
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Was your hypothesis confirmed? Explain.
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Was your hypothesis confirmed? Explain.
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Was your hypothesis confirmed? Explain.
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Was your hypothesis confirmed? Explain.
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Instructions You have completed the lesson. You may scroll up to review the lesson. |