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Aerosol OT (AOT) is used in veterinary medicine as a laxative. If 250 g of AOT is dissolved in 1 000 mL of glycerin (density of glycerin is 1.25 g/mL), the concentration of AOT in the solution is:
Suggested Answer: B
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12 comments · newest first
OL
Olene
11 months ago
I agree with 20.0% w/w too!
CH
Chanel
12 months ago
Wait, how does that even work? Sounds off.
VA
Vashti
12 months ago
No way, it's definitely 16.7% w/w!
LA
Larae
12 months ago
I think it's 20.0% w/w.
YO
Yoko
1 year ago
AOT in glycerin? That's interesting!
CA
Carlton
1 year ago
I think I might lean towards option C, but I need to double-check my calculations for the total mass of the solution.
JA
Jannette
1 year ago
I feel like the density of glycerin might throw me off a bit. Was it 1.25 g/mL or something else?
LE
Levi
1 year ago
I think we did a similar question about solutions, and I recall that the total weight is crucial for finding the concentration.
LO
Lonna
1 year ago
I remember we calculated w/w percentages in class, but I'm not sure if I got the glycerin's weight right.
WI
Wilburn
1 year ago
Okay, let me think this through step-by-step. The SEC is a federal agency, so the members are appointed by the government, not elected. And I believe it's 5 members appointed by the President with Senate approval, not 6 or 7. I'm going to go with option B.
FI
Filiberto
1 year ago
Hmm, I'm not totally sure about this one. The options all sound similar, but I'm leaning towards the initiation stage as the best answer.
AA
Aaron
1 year ago
I'm feeling pretty confident about this one. The Business Change Manager is the programme role that would most likely have a seat on the project board to advocate for the business.