How many moles of carbon are in 2.5 grams of calcium carbonate?

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Trinidad TremblayLv2

16 Dec 2019

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Question 1 HW449

This question has multiple parts. Work all the parts to get the most points.

a. According to the following reaction, how many moles of calcium oxide will be formed upon the complete reaction of 0.305 moles calcium carbonate?

calcium carbonate (s) calcium oxide (s) + carbon dioxide (g)

_________ moles calcium oxide

b. According to the following reaction, how many grams of potassium hydroxide are required for the complete reaction of 32.0 grams of carbon dioxide?

carbon dioxide (g) + potassium hydroxide (aq) potassium carbonate (aq) + water (l)

__________ grams potassium hydroxide

c. According to the following reaction, how many grams of calcium carbonate are needed to form 23.2 grams of carbon dioxide?

calcium carbonate (s) calcium oxide (s) + carbon dioxide (g)

_______________________ grams calcium carbonate

Enter the coefficients directly from the balanced chemical equation.
Do not reduce to lowest terms.
For example: If 3 moles H₂ react with 3 moles O₂, enter "3" for each, not "1".

According to the following reaction:

3KOH (aq) + H₃PO₄ (aq) K₃PO₄ (aq) + 3H₂O (l)

What would you multiply "moles of potassium hydroxide" by to convert to the units "moles of water" ?