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kkurt [141]
3 years ago
5

A crime scene investigator is called in to evaluate a crime scene. The victim is lying on the floor with no apparent trauma. Wha

t pieces of physical evidence found at the crime scene would be MOST relevant in this case?
A) clothing of the victim
B) call records of the victim
C) empty pill bottles next to the body
D) hair collected from victim's shower
Chemistry
2 answers:
kodGreya [7K]3 years ago
5 0
C the empty pills, because they can be linked back to see if death was a side effect.
kodGreya [7K]3 years ago
4 0

Answer: C) empty pill bottles next to the body.

Explanation:

A crime scene is a place where potential evidences related to crime can be found.

According to the given situation, an empty pill bottles next to the body is the most relevant option because on chemical examination of pills in a forensic lab the composition of the drug can be identified. The symptoms related to it can be determined, which can be linked with condition of the victim.

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Convert 1.50μm2 to square meters
IrinaVladis [17]
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The solubility of oxygen in lakes high in the Rocky Mountains is affected by the altitude. If the solubility of O2 from the air
IceJOKER [234]

Answer:

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Given mole fraction:

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According to Dalton's law of partial pressures, the partial pressure of oxygen is equal to the product of its mole fraction and the total pressure:

p^o = \chi_{O_2} p

Then the equation becomes:

S_1 = k_H \chi_{O_2} p

Solve for k_H:

k_H = \frac{S_1}{\chi_{O_2} p} = \frac{2.67\cdot 10^{-4} M}{0.209\cdot 1.00 atm} = 0.001278 M/atm

Now we're given that at an altitude of 12,000 ft, the atmospheric pressure is now:

p = 0.657 atm

Apply Henry's law using the constant we found:

S_2 = k_H \chi_{O_2} p = 0.001278 M/atm\cdot 0.209\cdot 0.657 atm = 1.75\cdot 10^{-4} M

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maria [59]
<span>i get 3.19x10^20 atoms 
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