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HW 6 sutcliffe

# HW 6 sutcliffe - silva(jrs4378 – Homework 6(corrected...

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Unformatted text preview: silva (jrs4378) – Homework 6 (corrected) – sutcliffe – (51060) 1 This print-out should have 16 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. THIS IS THE CORRECT HOMEWORK 6!!! 001 10.0 points If the value of K b for pyridine is 1 . 8 × 10- 9 , calculate the equilibrium constant for C 5 H 5 NH + (aq) + H 2 O( ℓ ) → C 5 H 5 N(aq) + H 3 O + (aq) . 1. 1 . 8 × 10- 16 2. 5 . 6 × 10 8 3. 1 . 8 × 10- 9 4.- 1 . 8 × 10- 9 5. 5 . 6 × 10- 6 002 10.0 points Calculate the resulting pH obtained by mixing 16.5 g HCl and 22.6 g NaCl in water to create 482 L solution. 1. 3.03 2. 2.15 3. 3.92 4. 5.67 5. 4.31 6. 1.13 003 10.0 points I found some ammonium sulfate sitting in a can. I mixed it with some water I had sitting in a pan. It really mixed up nicely, I thought that I would say the solution was ? on this lovely day. 1. still neutral 2. now just basic 3. now acidic 004 10.0 points Which solution has the lowest pH? 1. 0.1 M KClO, K a HClO = 3 . 5 × 10- 8 2. 0.1 M KC 2 H 3 O 2 , K a HC 2 H 3 O 2 = 1 . 8 × 10- 5 3. 0.1 M KCl, K a HCl = very large 4. 0.1 M KNO 2 , K a HNO 2 = 4...
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HW 6 sutcliffe - silva(jrs4378 – Homework 6(corrected...

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