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orange
Assuming it to be mostly a weak acid, the color would be orange/yellow
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It is a browny-pinky-purple. If you were to go for the type in which you had to dilute it would be a very bright green colour. and freshly squeezed orange juice is multicoloured, with hints of all the colours of the rainbow.
If you are talking about universal indicator when it would be orange.
Milk of magnesia is a basic solution. Therefore, methyl orange shows a yellowish orange colour. Further, this indicator shows a red colour in acidic solutions.
It turns into a bright reddish orange colour. (A bit similar to the can) The pH value would be around 2. Hope this helps :)
As orange contains acidic substances, a piece of pH paper would indicate a colour which is in the acid range and the strict colour may differ according to the fruit too.
Yes it does (I know because i did the test on orange juice) The more Vitamin C something has in it the less drops of that thing (in my case the orange juice) is needed for the DCPIP to go pale yellow. It is an awesome test! I would try it ( only if you have DCPIP and lots of different types of orange juice! Of course!)
Lemon juice. It has a pH of 2.3, whereas orange juice has a pH of 3.3. What is being cleaned off is the CuO and CuCO3 that forms on the penny. Both O2- and CO32- are bases, so the stronger the acid, the more effectively they will be reacted away. I did a quick online search for the pH of grape juice but did not find anything, but given that it lacks the sour taste that orange and lemon juice have (an indicator of acidity), I would have to assume that it is not as acidic as either lemon or orange juice.
Pure, fresh-squeezed orange juice would be homogenous, because it would be nothing but orange juice and pulp. Store-bought orange juice is typically heterogeneous, as ingredients are typically added... sugar, preservatives, etc.
It will turn the orange into orange juice