Chemistry Ph Test for Acids & Bases: Adding Solution Drops


When adding drops of a Ph solution in a chemistry experiment to test for acids and bases, wait for drops to dissolve before analyzing the color. Learn how to add drops to test for acidity and Ph levels in this free video on chemistry experiments from a science teacher.

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Video Transcript

O.k, what we're going to do now is we're going to take this cabbage juice, you notice it's a real rich purple color, kind of. And, what we're going to do is we're going to put fifteen drops into each of these and we're going to start to notice the color changes, but let's go ahead and let's take a dropper and what we're going to do, and we're going to go ahead and put fifteen drops in and just let you see it. One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen. Now, you also want to make sure that if you put a lot in there, you want to make sure that since we had for instance, this is club soda, we put a lot in there. What you can do is that rather than just take your time and do this, what you can do is get a tray, pour this in here, and go ahead and just pour more in there, go ahead pour more, now I'm going to the Milk of Magnesia, Vinegar, the Lemon Juice, now the Tomato Juice, the Ammonia, the Lye, the Sugar, the Citric Acid, and the Distilled Water, and now we're just going to let them sit for a moment, just for a moment and then we're going to observe their colors.


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