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Ch.17 - Additional Aspects of Aqueous Equilibria

Chapter 17, Problem 119a

Baking soda (sodium bicarbonate, NaHCO3) reacts with acids in foods to form carbonic acid 1H2CO32, which in turn decomposes to water and carbon dioxide gas. In a cake batter, the CO21g2 forms bubbles and causes the cake to rise. (a) A rule of thumb in baking is that 1/2 teaspoon of baking soda is neutralized by one cup of sour milk. The acid component in sour milk is lactic acid, CH3CH1OH2COOH. Write the chemical equation for this neutralization reaction.

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Hey everyone, we're asked to provide the balanced chemical equation for the neutralization of acetic acid with potassium hydroxide. Writing this out, we know that acetic acid has the formula of CH three C. 00. H. And this will be in its acquis form. We were told that it reacted with potassium hydroxide which has a formula of K. O. H. And this is also in its acquis form. Now when these two react are acetic acid is going to donate a proton to our base. And so we will form water which will be in its liquid form. Then we will also produce assault which is going to be potassium acetate with a formula of CH three C. O. Okay. And this will also be in its acquis form. Now to check if everything is balanced, it looks like everything is completely balanced and this will be our final answer. So I hope this made sense. And let us know if you have any questions.
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Baking soda (sodium bicarbonate, NaHCO3) reacts with acids in foods to form carbonic acid 1H2CO32, which in turn decomposes to water and carbon dioxide gas. In a cake batter, the CO21g2 forms bubbles and causes the cake to rise. (c) If 1/2 teaspoon of baking soda is indeed completely neutralized by the lactic acid in sour milk, calculate the volume of carbon dioxide gas that would be produced at 1 atm pressure, in an oven set to 350 F.

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