2017-2018 Chemistry 1-2 (San Marino High School)

Due: 05/31/2018

Fri, 25 May 2018 08:26:26 PDT

Check! Semester 2 Final Review

5/19/17 Final Review Pt. 2

62. 170 ft³

63. 279 mL

64. 19.0 atm

65. 310 K

67. 0.242 g Ne

68. 7 L

69.1.88 x 10³ L

70. 7.9 x 10⁵ lb H₂

71. 395 mL H₂

74. 4.4 x 10⁴ cal or 183 kJ

75. dispersion forces; hydrogen bonds & dispersion forces; dipole-dipole interactions & dispersion

76. CS₂; HF; CH₃CH₂OH

78. CS₂

79. CH₃OH

80. NaCl

82. 2Na + 2H₂O --> 2NaOH + H₂

Na₂O + H₂O --> 2NaOH

SO₃ + H₂O --> H₂SO₄

2H₂O --> 2H₂ + O₂

83. 2H₂ + O₂ --> 2H₂O

2C₄H₁₀ + 13O₂ --> 8CO₂ + 10H₂O

H₂C₂O₄ + 2LiOH --> 2H₂O + Li₂C₂O₄

84. Na₂O₂•8H₂O

85. increase P & decrease T

86. surface area, temperature, and stirring

87. CH₃OH - polar

89. 28.6% glucose; 2.22 molal

90. 1.00 M

91. 6.94 g CaCl₂

92. 0.30 M

93. 0.033 L or 33 mL

94. -8.44ºC

95. (K_BP for water is 0.512 ºC/m ) 102.79ºC (ionic - breaks into two)

96. 53.4 g/mol

99. 0.2639 M H₂SO₄

101. HCO₃^- = base

H₂PO₄^- = acid

HPO₄^2- = conjugate base

H₂CO₃ = conjugate acid

[H⁺]	[OH^-]	pH	pOH	A/B
2.3 x 10^-4 M	4.3 x 10^-11 M	3.64	10.36	acid
2.7 x 10^-9 M	3.7 x 10^-6 M	8.57	5.43	base

103. HCl; KOH; NaNO₃

104. H⁺ + OH^- --> H₂O

H₃PO₄ + 3OH^- --> 3H₂O + PO₄^3-

2Ag⁺ + CO₃^2- --> Ag₂CO₃

106. Rate = 0.213 s^-1 [A]¹[B]⁰

109. 9.6

110. right; left; none; right; right

111. right; left; none; left

112. 2.51

113. 1.6 x 10^-11 M; 1.4 x 10^-2 M

114. H₂S < S₈ < S₂O₃^2- < SO₂ < H₂SO₄

115.

Ox	Red	Ox ag	Red ag
Mg	O	O₂	Mg
Al	H	H⁺	Al
Mn	O	H₂O₂	Mn²⁺

116. 2Al + 3Br₂ --> 2Al³⁺ + 6Br^-

14H⁺ + Cr₂O₇^2- + 6Cl^- --> 3Cl₂ + 2Cr³⁺ + 7H₂O

2OH^- + Mn²⁺ + H₂O₂ --> MnO₂ + 2H₂O

117. anode: Cu; cathode: Rh

e- flow from anode to cathode

cations to the cathode compartment

anions to the anode compartment

Eº_cell = 0.28 V

If it helps any, here are some things we memorized during Semester 2:

n. ∆H +endo/-exo

o. AB = k versus A/B = k

p. mole fractions and Dalton's Law

q. Boyle's, Charles', Gay Lussac, PV = nRT

r. kinetic energy (KE) = (1/2)mv²

s. Absolute zero, STP, and converting between Cº and K

t. ∆H_fus or ∆H_vap and the solid-melting-liquid-boiling-gas stair-step energy diagram

u. ∆_BP = m K_BP or ∆_MP = m K_MP

v. pH, pOH, [H⁺], [OH^-], K_w

w. strong acids, strong bases

x. K_ex = [products]/[reactants], but only (aq) and (g)

y. LEO says GER, and "An ox and red cat"

z. Eº_cell = Eº_red (reduced element) - Eºred(oxidized element)

Due: 05/24/2018

Wed, 23 May 2018 10:38:45 PDT

HW Collection & Review Sheet (due in basket, Thurs, May 22, before bell rings)

HW Collection (packet):

1. May 21: Balancing Redox D

2. May 23: Review - Ch. 17 Oxidation & Reduction

Review Sheet (salmon)

Finish RS. Unit 12 - Reduction & Oxidation

(Ch. 17)

Major Topics:

1. Predict oxidation #s for each element in a species

2. Use oxidation #s to determine which element is oxidized/reduced

3. Determine the oxidizing/reducing agents

4. Balance redox equations

5. Label the anode, cathode, and direction of e- flow in a voltaic cell

6. Describe the purpose of a salt bridge and direction of ion flow

7. Calculate Eº for a redox reaction (and is the reaction spontaneous?)

Labs:

1. Iron Transitions

-identifying redox

2. Metal Activity

-oxidized/reduced elements

-reducing/oxidizing agents

-redox trend in the metal activity series

Due: 05/23/2018

Wed, 23 May 2018 14:08:30 PDT

Tues, 5/22/18 CW (stamped Wed, 5/23/18)

"Review - Ch. 17 Oxidation/Reduction" WS.

*Cell Notation Notes attached.

Check!

1a. H +1, Cl +5, O -2

1b. Sb +3, O -2

1c. As +5, O -2

1d. H +1, B +3, O -2

2a. C; I; I₂O₅; CO

2b. P; S; S₈; P₄

2c. I; Sb; SbCl₅; KI

3a.* 8NO₃ + 3Cu --> 3Cu(NO₃)₂ + 2NO + 4H₂O

3b.* 2Bi(OH)₃ + 3K₂SnO₂ --> 2Bi + 3K₂SnO₃ + 3H₂O

4a. 14H⁺ + Cr₂O₇^2- + 3C₂O₄^2- --> 6CO₂ + 2Cr³⁺ + 7H₂O

4b. 3ClO₂ + 4H⁺ + 4MnO₄^- --> 4MnO₂ + 2H₂O + 3ClO₄^-

basic: 3ClO₂ + 2H₂O + 4MnO₄^- --> 4MnO₂ + 4OH^- + 3ClO₄^-

5a. -Eº_cell = not spontaneous (will not occur as written)

5b. +Eº_cell = spontaneous (will occur as written)

6a. 3Fe²⁺ + 2Al --> 2Al³⁺ + 3Fe; Eº = 1.22 V

6b. Cl₂ + Zn --> Zn²⁺ + 2Cl^-; Eº = 2.12 V

7b. Ox: Cr --> Cr³⁺ + 3e^-; Red: Cu²⁺ + 2e^- --> Cu

7c/d/e. electrons flow from -anode (Cr) to +cathode (Cu)

7f. 1.08 V (spontaneous, voltaic)

7g. salt anions to anode beaker; salt cations to cathode beaker

8b. Ox: Pb --> Pb²⁺ + 2e^-; Red: Zn²⁺ + 2e^- --> Zn

8c/d/e. electrons flow from -anode (Pb) to +cathode (Zn)

8f. -0.63 V (not spontaneous, electrolytic)

8g. salt anions to anode beaker; salt cations to cathode beaker

*challenge (not what you'd see on an exam)

Due: 05/22/2018

Mon, 21 May 2018 11:40:31 PDT

Mon, 5/21/18 CW (stamped Tues, 5/22/18)

"Balancing Redox C" WS, especially backside #5.

*Notes/sample problems attached.

Check! (pic attached)

Due: 05/21/2018

Thu, 17 May 2018 15:56:40 PDT

Fri, 5/18/18 CW (stamped Mon, 5/21/18)

"Balancing Redox D" WS.

Check!

1. 2Fe³⁺ + H₂S --> 2Fe²⁺ + S + 2H⁺

2. ClO₃^- + 2MnO₂ + 2OH^- --> Cl^- + 2MnO₄^- + H₂O

3. 4H⁺ + Cu + SO₄^2- --> Cu²⁺ + SO₂ + 2H₂O

4. 4OH^- + SO₂ + Br₂ --> SO₄^2- + 2H₂O + 2Br^-

5. 2H₂O + 3P + 5NO₃^- --> 3PO₄^3- + 4H⁺ + 5NO

6. 6Mn³⁺ + 6OH^- + I^- --> IO₃^- + 3H₂O + 6Mn²⁺

7. 2Mn²⁺ + 14H⁺ + 5BiO₃^- --> 2MnO₄^- + 5Bi³⁺ + 7H₂O

8. 10OH^- + 2Cr³⁺ + 3ClO^- --> 2CrO₄^2- + 3Cl^- + 5H₂O

Please let me know if there are any typos above!

Due: 05/18/2018

Thu, 17 May 2018 15:23:30 PDT

Thurs, 5/17/18 CW (stamped Fri, 5/18/18)

"Balancing Redox B" WS.

*Notes/samples attached.

Samples are "Balancing Redox A" #2 and "Balancing Redox B" #1.

Check:

1. 4H₂O + 2NO₃^- + 6I^- --> 2NO + 3I₂ + 8OH^-

2. 2H₂O + C + 2SO₄^2- --> CO₂ + 2SO₂ + 4OH^-

3. H₂O + 2NO₃^- + 2Sb --> Sb₂O₃ + 2NO + 2OH^-

4. 8NH₃ + 6NO₂ --> 7N₂ + 12H₂O

Due: 05/17/2018

Wed, 16 May 2018 15:05:17 PDT

Wed, 5/16/18 CW (stamped Thur, 5/17/18)

"Balancing Redox A" WS.

*Notes/samples attached.

Check!

1. 4H⁺ + 6NO₃^- + S --> 6NO₂ + 2H₂O + SO₄^2-

2. 2H₂O + 2Cr³⁺ + 3 MnO₂ --> 2CrO₄^2- + 3Mn²⁺ + 4H⁺

3. 6H⁺ + 2MnO₄^- + 5H₂S --> 2Mn²⁺ + 5S + 8H₂O

4. S + 2NO₃^- --> 2NO + SO₄^2-

5. 5H⁺ + 5NO₃^- + P --> 5NO₂ + H₂O + H₃PO₄

6. 8H⁺ + Cr₂O₇^2- + 3H₂S --> 2Cr³⁺ + 7H₂O + 3S

7. 4H⁺ + MnO₂ + 2Cl^- --> Mn²⁺ + 2H₂O + Cl₂

8. 16H⁺ + 2MnO₄^- + 10Br^- --> 5Br₂ + 2Mn²⁺ + 8H₂O

Due: 05/16/2018

Tue, 15 May 2018 08:50:09 PDT

Tues, 5/15/18 CW/HW (due in basket before bell rings, Wed, 5/16/18)

Lab - Single Replacement REDOX-style.

Click here to submit your summary (due Wed, 5/16 before 7:59 AM).

Due: 05/15/2018

Mon, 14 May 2018 16:45:20 PDT

Mon, 5/14/18 CW (stamped Tues, 5/5/18)

"Identifying Redox" WS.

*Notes attached.

Due: 05/14/2018

Thu, 10 May 2018 15:49:09 PDT

Fri, 5/11/18 HW (submitted Mon, 5/14/18 before 7:59 AM)

1. Take notes by hand.

2. Compose your summary (on a Google doc to save your work if you want).

3. Copy-and-paste your summary here, choosing "Oxidation and Reduction."