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Lesson 3 Quiz: Quantitative Chemical Analysis – Volumetric and Gravimetric Methods

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1.
STEM Organic Chemistry Problem 40: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Ethylene glycol through addition
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Ethyl alcohol (Ethanol) directly in one step
Acetic acid (Ethanoic acid) directly
2.
What is the exact chemical deduction according to Egyptian curriculum standards for: Le Chatelier's Principle in Gas-Phase Equilibrium?
Increasing temperature always increases the value of Kc for exothermic reactions
Decreasing volume increases the value of Kp for any reaction
Increasing pressure on an equilibrium mixture shifts the reaction toward the side with fewer moles of gas, without changing the equilibrium constant (Kc)
Adding a catalyst shifts the equilibrium position toward products
3.
STEM Electrochemistry Problem 27: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+1.10 V (spontaneous galvanic cell)
+0.58 V
-1.10 V (electrolytic cell)
+0.42 V
4.
STEM Electrochemistry Problem 36: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.42 V
+1.10 V (spontaneous galvanic cell)
+0.58 V
-1.10 V (electrolytic cell)
5.
STEM Electrochemistry Problem 10: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
-1.10 V (electrolytic cell)
+0.58 V
+1.10 V (spontaneous galvanic cell)
+0.42 V
6.
STEM Organic Chemistry Problem 10: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Ethyl alcohol (Ethanol) directly in one step
Ethylene glycol through addition
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Acetic acid (Ethanoic acid) directly
7.
STEM Electrochemistry Problem 18: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.42 V
+1.10 V (spontaneous galvanic cell)
+0.58 V
-1.10 V (electrolytic cell)
8.
STEM Organic Chemistry Problem 38: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Ethyl alcohol (Ethanol) directly in one step
Acetic acid (Ethanoic acid) directly
Ethylene glycol through addition
9.
STEM Electrochemistry Problem 2: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.42 V
+1.10 V (spontaneous galvanic cell)
+0.58 V
-1.10 V (electrolytic cell)
10.
STEM Electrochemistry Problem 29: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.42 V
-1.10 V (electrolytic cell)
+0.58 V
+1.10 V (spontaneous galvanic cell)
11.
STEM Organic Chemistry Problem 35: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Acetic acid (Ethanoic acid) directly
Ethylene glycol through addition
Ethyl alcohol (Ethanol) directly in one step
12.
STEM Electrochemistry Problem 3: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.42 V
+0.58 V
-1.10 V (electrolytic cell)
+1.10 V (spontaneous galvanic cell)
13.
STEM Electrochemistry Problem 25: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
-1.10 V (electrolytic cell)
+0.42 V
+1.10 V (spontaneous galvanic cell)
+0.58 V
14.
STEM Organic Chemistry Problem 18: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Acetic acid (Ethanoic acid) directly
Ethylene glycol through addition
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Ethyl alcohol (Ethanol) directly in one step
15.
STEM Organic Chemistry Problem 39: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Ethyl alcohol (Ethanol) directly in one step
Acetic acid (Ethanoic acid) directly
Ethylene glycol through addition
16.
STEM Organic Chemistry Problem 43: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Acetic acid (Ethanoic acid) directly
Ethyl alcohol (Ethanol) directly in one step
Ethylene glycol through addition
17.
STEM Electrochemistry Problem 17: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
-1.10 V (electrolytic cell)
+0.58 V
+0.42 V
+1.10 V (spontaneous galvanic cell)
18.
STEM Electrochemistry Problem 30: In a Daniell cell, Zn | Zn2+ (1 M) || Cu2+ (1 M) | Cu, given E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V, what is the standard electromotive force (E°cell)?
+0.58 V
+1.10 V (spontaneous galvanic cell)
+0.42 V
-1.10 V (electrolytic cell)
19.
STEM Organic Chemistry Problem 19: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Acetic acid (Ethanoic acid) directly
Ethylene glycol through addition
Ethyl alcohol (Ethanol) directly in one step
20.
STEM Organic Chemistry Problem 12: Catalytic hydration of acetylene (ethyne, C2H2) with H2O in the presence of 40% H2SO4 and 1% HgSO4 at 60°C yields which intermediate and final product?
Ethylene glycol through addition
Unstable vinyl alcohol intermediate that tautomerizes to Acetaldehyde (Ethanal, CH3CHO)
Ethyl alcohol (Ethanol) directly in one step
Acetic acid (Ethanoic acid) directly
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