The glycerin should be used in preparing 5 gallons of the lotion is 3548.4 g. Thus, option D is correct.
According to the statement
we have given that the a vehicle contains 15% v/v of glycerin. and we have to find that the How much glycerin should be used in preparing 5 gallons of the lotion.
So, For this purpose, we know that the
15% v/v means that there will be 15 ml of glycerin in every 100 ml of lotion.
And The conversion would be :
We know that the
In 1 gallon = 3784 ml
5 gallons x 3784 ml = 18,920 ml
And
18,920 ml x 15 ml glycerin/100 ml = 2838 ml of glycerin
And the
Density of glycerin = 1.26 g/ml
So,
2838 ml x 1.26 g/ml = 3548.4 g glycerin.
So, The glycerin should be used in preparing 5 gallons of the lotion is 3548.4 g. Thus, option D is correct.
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