Whoops, I meant 3.0 cm. Correct.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.
Forensics C
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samlan16
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Re: Forensics C
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Re: Forensics C
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?
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
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
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?
How can you tell the difference between sodium carbonate and sodium bicarbonate?
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Re: Forensics C
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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Re: Forensics C
Correct! Please post the next question.pikachu4919 wrote: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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Re: Forensics C
How can one make sure a flame test result is or isn't actually yellow?
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Re: Forensics C
pikachu4919 wrote:How can one make sure a flame test result is or isn't actually yellow?
Look at the flame with cobalt blue glass to filter out any orange/ yellow light from the flames.
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Re: Forensics C
yep! your turn!samlan16 wrote:pikachu4919 wrote:How can one make sure a flame test result is or isn't actually yellow?Look at the flame with cobalt blue glass to filter out any orange/ yellow light from the flames.
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Re: Forensics C
Suppose that you are given a powder which burns red in a standard propane flame. What is the cation in that compound?
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