Question
Use the library or the Internet to research common uses for sodium hydroxide, which is also called lye.
Step 1
Step 1: Firstly, we need to understand that sodium hydroxide, also known as lye, is a strong base that can initiate many different types of reactions due to its chemical properties. Show more…
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Lye (NaOH) is a strong base used to encourage browning on pretzels and bagels. During preparation, lye powder is dissolved in water to make a basic solution: shaped pretzel or bagel dough is briefly submerged in this solution before being baked in the oven. What happens when lye dissolves in water to make the solution basic? Lye dissolves, releasing H+ ions that increase the pH of the solution. Lye dissolves into Na+ and OH- ions: Na+ ions increase the pH of the solution. Lye dissolves into Na+ and OH- ions: some OH- ions bind H+ ions to form water, increasing the pH of the solution.
How is sodium hydroxide manufactured? What is another product in this process?
Caustic soda, $\mathrm{NaOH}$, can be manufactured from sodium carbonate in a manner similar to the preparation of lithium hydroxide. Write balanced equations (in three steps) for the preparation of $\mathrm{NaOH}$ from slaked lime, $\mathrm{Ca}(\mathrm{OH})_{2}$, salt $(\mathrm{NaCl})$, carbon dioxide. ammonia, and water.
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