Advanced Placement / Biology


In this lab, students investigate the diffusion of ions through a semipermeable membrane using apple cider vinegar and a pH sensor.

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ADVBIO_02_Diffusion_S.docx 230.70 KB
ADVBIO_02_Diffusion_S.pdf 452.07 KB
ADVBIO_02_Diffusion.spklab 5.15 KB

Standards Correlations

IB Topics AP Topics
1.4; 10.3 2

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pH Sensor

Wireless pH Sensor

Here’s the best tool for measuring pH since litmus paper. The Wireless pH Sensor connects via Bluetooth® to monitor the pH of solutions.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

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