I can't get this right! Please help...
Based on the formula below, what quantities of each are needed to make 180 ml of this lotion?
Benzyl Benzoate 250 ml
Triethanolamine 5 ml
Oleic Acid 20 ml
Purified water to make 1000 ml
I don't see the formula.
To determine the quantities needed for the lotion, we need to use the given formula. Let's break it down step by step:
1. Start by determining the ratio of each ingredient to the desired final volume of the lotion (180 ml).
For Benzyl Benzoate:
Ratio = (quantity of Benzyl Benzoate / quantity to make 1000 ml) = (250 ml / 1000 ml) = 0.25
To find the quantity needed for 180 ml, multiply the ratio by the desired final volume:
Benzyl Benzoate needed = (0.25) * (180 ml) = 45 ml
Repeat this process for the other ingredients:
For Triethanolamine:
Ratio = (quantity of Triethanolamine / quantity to make 1000 ml) = (5 ml / 1000 ml) = 0.005
Triethanolamine needed = (0.005) * (180 ml) = 0.9 ml
For Oleic Acid:
Ratio = (quantity of Oleic Acid / quantity to make 1000 ml) = (20 ml / 1000 ml) = 0.02
Oleic Acid needed = (0.02) * (180 ml) = 3.6 ml
For Purified water:
Ratio = (quantity of Purified water / quantity to make 1000 ml) = (x ml / 1000 ml) = (1000 ml - 250 ml - 5 ml - 20 ml) / 1000 ml = 725 ml / 1000 ml = 0.725
Purified water needed = (0.725) * (180 ml) = 130.5 ml
So, to make 180 ml of the lotion, you would need:
- 45 ml of Benzyl Benzoate
- 0.9 ml of Triethanolamine
- 3.6 ml of Oleic Acid
- 130.5 ml of Purified water