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Red cabbage juice can be used to test the pH of common household chemicals. From left to right, the colors result from lemon juice, natural red cabbage ...
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chemistry.about.com/od/chemistryhowtoguide/ig/Science-P...
chemistry.about.com/od/chemistryhowtoguide/ig/Science-Projects-Photo-Gallery/Red-Cabbage-pH-Indicator.htm
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4. Store your red cabbage indicator in a labeled, sealed jar until you are ready to use it. Pre-Activity Making your pH paper 1. Cut several coffee filters into 2 x 6 cm strips. Place the strips onto several sheets of paper towel.
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www.ipse.psu.edu/activities/paper/red_cabbage.pdf
www.ipse.psu.edu/activities/paper/red_cabbage.pdf
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Make your own acid/base indicator by boiling red cabbage. Use the juice to pH different fluids. Equipment: 1. 1/2 head of *red* cabbage or so. ...
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www.madsci.org/experiments/archive/859332497.Ch.html
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3. Blend cabbage with water and filter juice through paper towel into 1 liter beaker. 4. For each sample, dissolve with stirring in museum jar, add cabbage juice with stirring -- explain -- continue with next sample. ... purple or red cabbage...
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www.cchem.berkeley.edu/demolab/demo_txt/CabbIndic.htm
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In this experiment, you will make your own pH indicator from red cabbage and use it to measure some liquids to see whether they are acids or bases.
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www.howstuffworks.com/experiment1.htm
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You can get a useful acid/base indicator from red cabbage. If you cut up the cabbage and boil it, the acid/base ... The anthocyanins in red cabbage turn bright pink in acid solutions, reddish-purple in neutral solutions and green in basic solutions. But anthocyanins from other plants have other pH/color profiles.
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web.chemistry.gatech.edu/~williams/bCourse_Information/...
web.chemistry.gatech.edu/~williams/bCourse_Information/red_cabbage_pH_indicator/cabbage.html
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Boil red cabbage and use the red water as a pH indicator with vinegar and baking soda. ... Long ago, it was found that the dye called litmus, found in a lichen, also changes color like red cabbage. The color of red cabbage or litmus or the petals on hydrangea indicates the pH. They are pH indicators.
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www.disknet.com/indiana_biolab/kids104.htm
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Red cabbage water is an indicator for pH ... CHOP one large red cabbage into small pieces. Note: Blackberries, red onions, or even hibiscus flowers can be used as a substitute. ... SIMMER the cabbage pieces until the water turns a deep shade of purple.
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www.miamisci.org/ph/phcabbage.html
www.miamisci.org/ph/phcabbage.html
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PH indicator - Wikipedia, the free encyclopedia
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A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined visually. Hence a pH indicator...
en.wikipedia.org/wiki/PH_indicator
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