the colour produced by black coffee if it is tested with universal indicator is
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After a few minutes, the coffee began to have a purplish tint. After mixing the baking soda into the black coffee, the mixture turned white, resembling creamer. However no bubbling occurred, indicating that it was a weak acid, verifying that it fits into our pH range of 5-6
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Answer : light green
the universal paper strips are PH strips that may vary to the content of coffee but mostly it will be between 3 to 5 so the colour can be greenish yellow.
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