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When baking a cake, one of the base ingredients is baking soda (also known as sodium bicarbonate). Usually you add around 2 1/4 teaspoons (10.8 grams) of baking powder. When the cake is in the oven, baking soda reacts to produce carbon dioxide which gets trapped inside of the cake to make it fluffy. There is also some that get released into the air.



2NaHCO3 --> CO2 + H2O + Na2CO3


If you bake a cake and when you weigh the ingredients, the final mass comes to about 310.32g. When you finish baking, you decide to weigh the delicious cake and all its glory, you find that the new mass of the cake is 310.21 grams. Just like in the popcorn lab, calculate how many moles of Carbon Dioxide molecules was released during the baking process?

When baking a cake one of the base ingredients is baking soda also known as sodium bicarbonate Usually you add around 2 14 teaspoons 108 grams of baking powder class=

Respuesta :

To calculate the moles of carbon dioxide molecules released during the baking process, we need to find the difference in mass before and after baking, then use the stoichiometry of the reaction to determine the moles of CO2 produced.

Given:
Initial mass of ingredients (before baking) = 310.32 g
Final mass of cake (after baking) = 310.21 g
Molar mass of CO2 = 44.01 g/mol

First, we find the mass of CO2 released:
Mass of CO2 released = Initial mass - Final mass
Mass of CO2 released = 310.32 g - 310.21 g
Mass of CO2 released = 0.11 g

Next, we convert the mass of CO2 released to moles using its molar mass:
Moles of CO2 released = Mass of CO2 released / Molar mass of CO2
Moles of CO2 released = 0.11 g / 44.01 g/mol
Moles of CO2 released ≈ 0.0025 moles

Therefore, approximately 0.0025 moles of carbon dioxide molecules were released during the baking process.

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