Sagot :
Before we can answer the question, let's try to define each word in the problem.
Ethyl Alcohol- It is known as ethanol, drinking alcohol or grain alcohol, is a flammable, colorless, slightly toxic chemical compound with a distinctive oder. It is besst known as the alcohol found in alcoholic beverages. Read more on this link https://brainly.ph/question/248782
Rubbing Alcohol - It is usually synthetically produced isopropyl alcohol and water. It is highly toxic and may cause death if consumed in even low quantities. It may be "denatured" alcohol.
Rubbing alcohhol is prepared from a special denatured alcohol solution and contains approximately 70% by volume of pure, concentrated ethanol. Read more from this link https://brainly.ph/question/1088017
In order to get the percentage concentration of any solution, we can express the volume percentage:
Volume % of any component= (Volume of the component in the solution)/ (Total Volume of the solution) x 100
Given in the problem :
Volume % = 70% = 0.7
Total Volume= 50 ml
Asked:
Volume of component(ethyl)= ?
Solution:
70%=( ? / 50)(100)
0.7=?/50
?=50(0.7)
?=35 ml.