If you add 6 drops of food coloring and 14 drops of water in a test tube. what is the concentration (v/v%) of food coloring in the test tube?

Answer : The concentration (v/v%) of food coloring in the test tube is 30%.

Solution : Given,

Drops of food coloring = 6 drops

Drops of water = 14 drops

Formula used :

Total drops in the test tube = Drops of food coloring + Drops of water

Total drops in the test tube = 6 + 14 = 20 drops

Now put all the given values in the above formula, we get

Therefore, the concentration (v/v%) of food coloring in the test tube is 30%.

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