Chp6_examples

Chp6_examples - Chapter 6 Examples (I) Write the net acid...

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Chapter 6 Examples (I) Write the net acid base reaction between aqueous solutions of: Ammonium chloride and sodium carbonate . Step 1. Recognize what species are ACTUALLY present in each of the two solutions to be mixed: Aqueous ammonium chloride = NH 4 Cl(aq) = NH 4 1+ (aq) + Cl 1– (aq) and the water solvent. Aqueous sodium carbonate = Na2CO3(aq) = 2Na 1+ (aq) + CO 3 2– (aq) and the water. In other words, there is NO “ammonium chloride” as such in aqueous solution. Step 2. Identify the strongest acid and strongest base in the mix. Use the acid-base table. Strongest acid is NH4^1+ and the strongest base is the carbonate anion. Step 3. Now write the net acid-base reaction: 1 3 3 2 3 1 4 HCO NH CO NH Note: reacting acid + reacting base = produced (conjugate) base + produced (conjugate) acid. (II) Practice Example 6.3. Initial concentration of KHSO4 to produce pH = 2.00 solution. Step 1. Recognize that by “solution” here, we mean KHSO4(aq).
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This note was uploaded on 03/29/2009 for the course CH 201 taught by Professor Warren during the Fall '07 term at N.C. State.

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Chp6_examples - Chapter 6 Examples (I) Write the net acid...

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