i.
Below are the answers to problems (reference paragraphs 2-2 to 2-3).
(1) 250 (1.65)
=
151.51515 (rounded to 151.52 ml)
(2) 350 (1.313)
=
459.55 g
(3) 5 (1.41)
=
7.05 g
(4) 473 (1.59)
=
752.07 g
Then: 752.07g 454 g/lb = 1.6565418 (rounded to 1.66 lb)
(5) 10 X 0.85
= 8.5 g mineral oil
Then 8.5
= 9.3406593 (rounded to 9.34 ml olive oil)
0.91
(6) 25.0 1.25 = 20.0 ml
(7) 6 0.81
= 7.4074074 (rounded to 7.41 ml)
(8) Reduce formula: 45 gm 2 = 22.5 g glycerin needed
Then: 22.5 1.25 = 18.0 ml
(9) 6 (0.85)
= 5.1 g mineral oil
Then: Add all other ingredients
6.0 g sal acid
4.0 g sulfur, ppt
5.1 g mineral oil
15.1 g other ingredients
Then: 120.0 g total weight
-15.1 g other ingredients
104.9 g petrolatum needed (answer)
(10)
500 473 = 1.0570824 (rounded to 1.06 specific gravity)
MD0802
2-11