2006-11-14 03:30:00 · 3 answers · asked by saurabh 1 in Science & Mathematics ➔ Chemistry
Measure the increase in lead content of different drinks, especially fruit juices, when poured into lead crystal.
How does the content increase the longer the juice stays in the glass?
2006-11-14 03:37:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Extract the caffeine from coffee or tea.
Measure the pH change starting with deionized water (pH=7), by adding a drop of acidic material once a minute while mixing. Plot this on a graph of pH vs. number of drops.
Crush up some carrots, squeeze all the juice out of them, and separate components using TLC (thin layer chromatography). You will notice different and pretty bands of colors formed.
2006-11-14 04:56:08 · answer #2 · answered by Bob 5 · 0⤊ 0⤋
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2016-10-17 06:37:54 · answer #3 · answered by merkel 4 · 0⤊ 0⤋