Qize/Test 2 material Flashcards

1
Q

DOC

A

Dissolved Organic Carbon

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2
Q

Dissolve Organic Carbon

A

The sum of all carbons on all organic molecules in an aqueous sample.

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3
Q

DOC is all carbon from organic compounds except inorganic carbon:

A

CO2, H2CO3, HCO3-, CO3 2-

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4
Q

What causes a longer retention time in Ion Chromatography?

A

Attraction to the stationary phase

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5
Q

What causes a shorter retention time in Ion Chromatography?

A

Affinity to the stationary phase

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6
Q

In temporal trends of Wilmington NC rainwater, if SO2 emissions increase what will happen to H2SO4 and H2O2?

A

H2SO4 will increase and H2O2 will decrease

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7
Q

In temporal trends of Wilmington NC rainwater, if SO2 emissions decrease what will happen to H2SO4 and H2O2?

A

H2SO4 will decrease and H2O2 will increae

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8
Q

In temporal trends of Wilmington NC rainwater, what are the effects on rain water with there are localized emissions of NH3?

A

-NH3 increases
-pH increases
-H+ decreases
-NH4 increases

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9
Q

Ion Chromatography
For HNO3 (nitric acid) —>

A

[NO3-]=[HNO3]

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10
Q

Ion Chromatography
For H2SO4 —>

A

[SO4 2-] sometimes=[H2SO4]
or lower

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11
Q

In chromotography what is the order of retention time slowest to fastest for:

NO3-
Cl-
SO4 2-

A

SO4 2- 7.9 mins
NO3- 3.9 mins
Cl- 2.1 mins

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12
Q
A
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