In this video, Christine Muth of the North Carolina School of Science and Mathematics demonstrates how to measure pH of a water sample using two types of pH paper.
Copyright 2010 LEARN NC.
Creative Commons License
[ Ссылка ]
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In this video, Christine Muth of the North Carolina School of Science and Mathematics demonstrates how to measure pH of a water sample using two types of pH paper.
Copyright 2010 LEARN NC.
Creative Commons License
[ Ссылка ]