University:
Campbell University
Course:
CHEM 111 | General Chemistry I
Academic year:

2023
Views:

354

Pages:

42
Author:

heleboelful

Kinetics Homework Booklet Name: Mr. B Period: 1. Which of the following reactions is the slowest at room temperature? * Look for (s) for slow A. NH₃(g) + HCl(g) → NH₄Cl(s) B. MgCl₂(aq) + Ca(s) → Mg(s) + CaCl₂(aq) C. HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l) D. Ba(NO₃)₂(aq) + 2H₂O(l) → Ba(OH)₂(s) + 2HNO₃(aq) 2. Which of the following reactions is the fastest at room temperature? * Look for (aq) for fast A. NH₃(g) + HCl(g) → NH₄Cl(s) B. MgCl₂(aq) + Ca(s) → Mg(s) + CaCl₂(aq) C. HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l) D. Ba(NO₃)₂(aq) + 2H₂O(l) → Ba(OH)₂(s) + 2HNO₃(aq) 3. Which of the following has the greatest reaction rate? A. 3H₂(g) + N₂(g) ⇌ 2NH₃(g) B. 2H₂O₂(l) ⇌ 2H₂O(l) + O₂(g) C. 2Al(s) + 3CaCl₂(aq) → 2AlCl₃(aq) + 3Ca(s) D. AgNO₃(aq) + NaBr(aq) → AgBr(s) + NaNO₃(aq) 4. Which of the following reactions would have the greatest reaction rate at room temperature? A. C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g) B. Ca(s) + 2H₂O(g) → Ca(OH)₂(aq) + H₂(g) C. AgNO₃(aq) + NaCl(aq) → AgCl(s) + NaNO₃(aq) D. Na₂CO₃(s) + 2HCl(aq) → 2NaCl(aq) + CO₂(g) + H₂O(g) 5. An 8.00 grams piece of magnesium was placed into 6.0 M HCl. After 25 seconds, 3.50 grams of unreacted magnesium remained. The average rate at which magnesium was consumed is: A. 0.14 grams per second B. 0.18 grams per second C. 0.32 grams per second D. 8.00 grams per second (8.00 - 3.50)g Mg / 25 s = 0.18 g/s 6. Consider the following reaction: Fe₂O₃(s) + 2Al(s) → Al₂O₃(s) + 2Fe(s) If 0.50 mol of Fe is produced in 10.0 sec, what is the rate of consumption of Fe₂O₃ in mol/sec? A. 5.0 x 10⁻² mol/sec B. 2.5 x 10⁻² mol/sec C. 1.0 x 10⁻¹ mol/sec D. 5.0 mol/sec 0.50 mol Fe / 10.0 s * (1 Fe₂O₃ / 2 Fe) = 0.025 mol Fe₂O₃ / sec 7. Consider the following reaction: 2H₂O₂ (l) → 2H₂O (l) + O₂(g) Which graph shows the relationship between the rate of consumption of H₂O₂ and time? [Image of four graphs labeled A, B, C, and D] B. 8. Consider the following: When a candle (C₂₀H₄₂) burns, the following reaction occurs: 2C₂₀H₄₂ (s) + 61O₂ (g) → 40 CO₂ (g) + 42H₂O (g) + heat If the rate of production of CO₂ is 0.98 g/min, what is the rate of oxygen consumption? A. 0.47 g/min B. 0.54 g/min C. 0.71 g/min D. 1.1 g/min 0.98 g CO₂/min * (1 mol CO₂ / 44.01 g CO₂) * (61 mol O₂ / 40 mol CO₂) * (32.00 g O₂ / 1 mol O₂) = 1.0869 g/min