Forensics C

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boomvroomshroom
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Re: Forensics C

Post by boomvroomshroom »

elephantower wrote:
Cornstarch
Yep!
So...what are your events again?
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Re: Forensics C

Post by elephantower »

Geomaps, Proteins, IAT, 4n6.
[S/N]
N/A = didn't compete

2013:
Geologic Mapping: 1, 2
Designer Genes: 3, :(
Astronomy: N/A, :(
2014:
Geologic Mapping: 1, N/A
Protein Modelling: 1, N/A
It's About Time: 1, N/A
Forensics: 9, N/A
2015:
Geologic Mapping: 1, ?
Hydrogeology: 1, ?
It's About Time: 1, ?
Forensics: 10, ?
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Re: Forensics C

Post by boomvroomshroom »

elephantower wrote:Geomaps, Proteins, IAT, 4n6.
I do Geomaps, Forensics, Astronomy, and Fossils. I only comment in It's About Time and Protein because I find them interesting topics, but I don't actually compete in them. (Studied for them but stopped because of scheduling conflicts.)
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Re: Forensics C

Post by samlan16 »

Here's one: find the Rf of black ink comprised of red ink that traveled 2.4 cm and blue ink that traveled 2.9 cm.
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Re: Forensics C

Post by boomvroomshroom »

samlan16 wrote:Here's one: find the Rf of black ink comprised of red ink that traveled 2.4 cm and blue ink that traveled 2.9 cm.
Rf would be 0.8 and 0.967.
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Re: Forensics C

Post by samlan16 »

boomvroomshroom wrote:
samlan16 wrote:Here's one: find the Rf of black ink comprised of red ink that traveled 2.4 cm and blue ink that traveled 2.9 cm.
Rf would be 0.8 and 0.967.
Whoops, I meant 3.0 cm. Correct.
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Re: Forensics C

Post by boomvroomshroom »

Oh, okay! Cool, so I guessed right. :)

Okay, so...on a mass spec, what do you call a) the rightmost peak, and b) the tallest peak?
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Re: Forensics C

Post by samlan16 »

boomvroomshroom wrote:Oh, okay! Cool, so I guessed right. :)

Okay, so...on a mass spec, what do you call a) the rightmost peak, and b) the tallest peak?
Rightmost= molecular ion mass; tallest= relative molecular mass/ relative formula mass
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Re: Forensics C

Post by samlan16 »

Well, it's been a while since anyone posted on this question marathon, so...

How can you tell the difference between sodium carbonate and sodium bicarbonate?
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Re: Forensics C

Post by pikachu4919 »

samlan16 wrote:Well, it's been a while since anyone posted on this question marathon, so...

How can you tell the difference between sodium carbonate and sodium bicarbonate?
they have different pH values. Na2CO3's is 10 and NaHCO3's is 8.
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