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CH 221 Lecture 10: lecture 10 pt2

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School
NCSU
Department
Chemistry
Course
CH 221
Professor
Kay A Sandberg

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Document Summary

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Related Questions


Match the statement to the correct answer. (Some reagents can be used more than once.) The flowchart along with the report sheets in experiment 5 should be very helpful.

A 6M Nitric Acid (HNO3)
B Colbalt Nitrate (Co(NO3)2)
C Disodium EDTA (Na2EDTA)
D Aluminum Nitrate (Al(NO3)3)
E Zinc Nitrate (Zn(NO3)2
F Barium Nitrate (Ba(NO3)2)
G 6M Hydrochloric Acid (HCl)
H OH-, CO32-, and PO43-
I Lead chloride (PbCl2(s))
J 0.1M sodium carbonate (Na2CO3)
K NH4+(aq) and OH-(aq)
L Silver chloride (AgCl(s))
M Anion
N Lead Nitrate (0.1M Pb(NO3)3)
O Silver Nitrate (AgNO3)
P Cation
Q 1M ammonium hydroxide (NH4OH)
R Na+, NO3-, and NH4+
S None of the above


A B C D E F G H I J K L M N O P Q R S This reagent is added fresh samples in test A3 where there was no reaction in tests A1 or A2.
A B C D E F G H I J K L M N O P Q R S Mixing AgNO3 and NaCl will produce what white precipitate.
A B C D E F G H I J K L M N O P Q R S This is the reagent added after 6M HCl during test B1.
A B C D E F G H I J K L M N O P Q R S Lead Nitrate (Pb(NO3)2) will combine with hydrochloric acid (HCl) to form what white precipitate?
A B C D E F G H I J K L M N O P Q R S In test A2 you add this reagent to the test where a precipitate was formed.
A B C D E F G H I J K L M N O P Q R S The name for a positively charged ion is....

A)What is the oxidation state of sulfur before and after the reaction below?

SO32-(aq) + MnO4-(aq) → SO42-(aq) + Mn2+(aq)

- A. B. C. D. E. F. G. H. I. J. K.

Before the reaction?
- A. B. C. D. E. F. G. H. I. J. K.

After the reaction?
A.

+5
B.

-5
C.

+4
D.

+1
E.

+6
F.

-2
G.

-4
H.

+3
I.

0
J.

-1
K.

-3

B) What is the oxidation state of copper before and after the reaction below?

2NO3-(aq) + 8H+(aq) + 3Cu(s) → 3Cu2+(aq) + 2NO(g) + 4H2O(l)

- A. B. C. D. E. F. G. H. I. J. K.

Before the reaction?
- A. B. C. D. E. F. G. H. I. J. K.

After the reaction?
A.

-1
B.

+5
C.

+2
D.

0
E.

-5
F.

-4
G.

-2
H.

+1
I.

-3
J.

+3
K.

+4

C)What is the oxidation state of nitrogen before and after the reaction below?

2NO3-(aq) + 8H+(aq) + 3Cu(s) → 3Cu2+(aq) + 2NO(g) + 4H2O(l)

- A. B. C. D. E. F. G. H. I. J. K.

Before the reaction?
- A. B. C. D. E. F. G. H. I. J. K.

After the reaction?
A.

+5
B.

+4
C.

+3
D.

+2
E.

+1
F.

0
G.

-1
H.

-2
I.

-3
J.

-4
K.

-5

Write the chemical structural formula for all of the following:

(a) benzene

(b) toluene

(c) ethyl-benzene

(d) m-xylene

(e) phenol

(f) 2,4,6-trichlorophenol

(g) pyrene

(h) methyl ethyl ketone (MEK)

(i) acetic acid

(j) 1-octanol

(k) bromoform

(l) bromodichloromethane

(m) monochloramine

(n) 1,1-DCA

(o) cis-1,2-DCE

(p) 1,1,2-TCA

(q) TCE

(r) PCE

(s) NDMA

(t) MTBE

(u) 1,4-dioxane.