Answers%20Homework%205

Answers%20Homework%205 - Homework 5 Answers 1 In aqueous...

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Homework 5 ( Answers) 1. In aqueous solution, Cr 2 O 7 -2 reacts with H 2 S (g) to give S (s) and Cr +3 (aq) . When the equation is completed and balanced, the coefficient of H + (aq) in the overall net ionic equation is a) 4 b) 6 c) 8 d) 14 2. Given the half-reaction Cl - (aq) ClO 4 - (aq) in basic solution. How many hydroxide ions are in the balanced half-reaction? a) 2 b) 4 c) 6 d) 8 3. Consider the half-reaction: RuO Ru 2 (SO 4 ) 3 Which statement is correct: “In the above half-reaction…” a) RuO is the reducing agent b) RuO is the oxidizing agent c) RuO is the oxidized form of the reducing agent d) RuO is the reduced form of the oxidizing agent 4. Calculate the frequency of light of wavelength 468 nm. C = 3.00 * 10 8 m.s -1 a) 4.68 * 10 14 Hz b) 6.41 * 10 -2 Hz c) 6.41 * 10 18 Hz d) 6.41 * 10 14 Hz
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5. Calculate the energy of a photon of light having a wavelength of 551 nm. C = 3.00 * 10 8 m.s 1 h = 6.63 * 10 -34 J.s a) 3.61 * 10 -17 J b) 3.61 * 10 -19 J c) 3.61 * 10 -33 J d) None of these
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Answers%20Homework%205 - Homework 5 Answers 1 In aqueous...

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