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17. What time is required to plate 2.08 g of copper at a constant current flow of 1.26 A? Atomic Molar Mass (A) Cu 41.8 min. 63.5 g.mol-¹ (B) Cu²+ (aq) + 2e Cu(s) (C) 83.6 min 128 min (D) 4820 min

17. What time is required to plate 2.08 g of copper at a constant current flow of 1.26 A? Atomic Molar Mass (A) Cu 41.8 min. 63.5 g.mol-¹ (B) Cu²+ (aq) + 2e Cu(s) (C) 83.6 min 128 min (D) 4820 min

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I need help with questions 17-18? Could you explain which option is is correct for each answer?

Bonding: 11. In which pair of compounds should the first member be more covalent than the second member? (A) TICI, TIC13 (B) SnI4, SnF4 (C) LiF, BF3 (D) SnF4, CF4 12. Which is the most complete and best description of a covalent bond? (A)a system of two nuclei with a pair of electrons located exactly midway between both nuclei (B)the attractive force between two atoms of opposite charge (C)a donor bond in which one atom donates an unshared pair to the other (D)a system of two nuclei where each atom donates one electron to the other atom, thus forming a bond 13. Which pair of elements is most likely to react to form a covalently bonded species? (B) Ca and O (C) K and S (A) P and O (D) Zn and C 14. Which chloride should exhibit the most covalent type of bond? (A) NaCl (B) KCI (C) CaCl₂ (D) BaCl, (E) BeCl₂ 15. The compound of which two elements is most likely to involve covalent bonding? Electronegativities of Unknown Elements (A)Q and Z Q 0.9 1.0 R T 2.8 (B)R and T Cu (A) X 3.0 Z 4.0 Electrochemistry: 16. Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+ (aq) + 6e → Cr(s) + 3H₂O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)? (A) 10.4 (B) 5.19 (C) 1.73 (D) 0.20 (C)T and X 17. What time is required to plate 2.08 g of copper at a constant current flow of 1.26 A? Atomic Molar Mass Ni Ag Cu 0.635 g 63.5 g.mol-¹ (D)R and X (A) 41.8 min (B) 83.6 min (C) 128 min (D) 4820 min 18. Nickel is a transition element and has a variable valence. Using a nickel salt, 2 F (faradays) plate out 39.2 g of nickel. What ions are in the solution of this salt? Atomic Molar Mass (E)R and Z 58.7 g.mol-1 (A) Ni+ (B) Ni²+ (C) Nj³+ (D) N₁2/3+ 19. A given amount of electric charge deposits 2.159 g of silver from an Ag+ solution. What mass of copper from a Cu²+ solution will be deposited by the same quantity of electric charge? Atomic Molar Masses 107.9 g.mol-¹ 63.5 g.mol-¹ (B) Cu²+ (aq) + 2e Cu(s) 1.97 g (C) 2.54 g (D) 127 g 20. If each of these ions were reduced to metal with one coulomb, which would yield the greatest mass? Cu²+ (aq) (B) Hg2+ (aq) Cu+ (aq) (A) Ag+ (aq) (C) (D)
Transcribed Image Text:Bonding: 11. In which pair of compounds should the first member be more covalent than the second member? (A) TICI, TIC13 (B) SnI4, SnF4 (C) LiF, BF3 (D) SnF4, CF4 12. Which is the most complete and best description of a covalent bond? (A)a system of two nuclei with a pair of electrons located exactly midway between both nuclei (B)the attractive force between two atoms of opposite charge (C)a donor bond in which one atom donates an unshared pair to the other (D)a system of two nuclei where each atom donates one electron to the other atom, thus forming a bond 13. Which pair of elements is most likely to react to form a covalently bonded species? (B) Ca and O (C) K and S (A) P and O (D) Zn and C 14. Which chloride should exhibit the most covalent type of bond? (A) NaCl (B) KCI (C) CaCl₂ (D) BaCl, (E) BeCl₂ 15. The compound of which two elements is most likely to involve covalent bonding? Electronegativities of Unknown Elements (A)Q and Z Q 0.9 1.0 R T 2.8 (B)R and T Cu (A) X 3.0 Z 4.0 Electrochemistry: 16. Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+ (aq) + 6e → Cr(s) + 3H₂O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)? (A) 10.4 (B) 5.19 (C) 1.73 (D) 0.20 (C)T and X 17. What time is required to plate 2.08 g of copper at a constant current flow of 1.26 A? Atomic Molar Mass Ni Ag Cu 0.635 g 63.5 g.mol-¹ (D)R and X (A) 41.8 min (B) 83.6 min (C) 128 min (D) 4820 min 18. Nickel is a transition element and has a variable valence. Using a nickel salt, 2 F (faradays) plate out 39.2 g of nickel. What ions are in the solution of this salt? Atomic Molar Mass (E)R and Z 58.7 g.mol-1 (A) Ni+ (B) Ni²+ (C) Nj³+ (D) N₁2/3+ 19. A given amount of electric charge deposits 2.159 g of silver from an Ag+ solution. What mass of copper from a Cu²+ solution will be deposited by the same quantity of electric charge? Atomic Molar Masses 107.9 g.mol-¹ 63.5 g.mol-¹ (B) Cu²+ (aq) + 2e Cu(s) 1.97 g (C) 2.54 g (D) 127 g 20. If each of these ions were reduced to metal with one coulomb, which would yield the greatest mass? Cu²+ (aq) (B) Hg2+ (aq) Cu+ (aq) (A) Ag+ (aq) (C) (D)
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