Classify each chemical reaction: type of reaction (check all that apply) reaction O combination O precipitation 2Na(s) + Br, (1) 2NaBr(s) O single replacement O combustion double replacement O acid-base O decomposition combination O precipitation кон (аq) + нBro, (aq) — квrо, (аg) + н,о() O single replacement O combustion double replacement O acid-base O decomposition O combination O precipitation O single replacement O double replacement O decomposition O combustion сH, ОCH, () + з0, (8) — 2со, (з) + зн,о8) O acid-base O combination O precipitation O combustion NaCI(a q) + A£NO, (aq) → NaNO, (aq) + AgCl(s) O single replacement O double replacement O acid-base O decomposition

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A: Answer  [A+] = 4.0 × 10^-6 M  

Q: Prepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for