A bottle of cough syrup contains 15 mL of guaifenesin in a total volume of 100 mL. What is the percent by volume of guaifenesin in the cough syrup?contains 30 mL of ethyl alcohol?
15%
A solution is made by mixing 10 mL of dish soap with 90 mL of water. What percentage of the solution is dish soap?
10%
What is the percent volume of ethyl alcohol in a 100 mL of rubbing alcohol which contains 30 mL of ethyl alcohol?
30%
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