Answer:
See explanation below
Step-by-step explanation:
0.75 ml equals ¾ ml
This says that if we take 3 ml of orange oil and 1 ml of alcohol, we obtain a solution of 4 ml, 3 of which are orange oil. That is to say, 1 ml of this solution contain ¾ = 0.75 ml of orange oil.
So, we proceed to fill our 10-mL graduate calibrated in 1-mL units, we add 3 ml of orange oil and 1 ml of alcohol, stir it and 1 ml of this solution will contain 0.75 ml of alcohol.
