AidenPearce
Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Propane is used as a fuel in most gas grills to cook food on during the warm summer months. When the propane is burned the following reaction takes place:

C3H8(l) + 5O2(g) = 3CO2(g) + 4H20(g)

A standard propane tank contains 6804 g of propane. Determine how many molecules of carbon dioxide gas are released into the atmosphere with an entire tank of propane is burned. In your answer be sure to: Describe the type of chemical reaction the propane undergoes, calculate the number of moles of propane used in the reaction, explain the mole ratio between propane and carbon dioxide in this reaction, calculate the number of moles of carbon dioxide produced, and calculate the number of molecules of carbon dioxide produced.

Sagot :

thisisbenmanley
The propane undergoes a combustion reaction (combustion reactions are reactions in which a substance reacts with oxygen and burns).

To calculate the number of moles of propane, we use the molar mass of propane, which is 44.0 g/mol.

[tex](6804g\ C_3H_8)(\frac{1mol\ C_3H_8}{40.0g\ C_3H_8})=170.1mol\ C_3H_8[/tex]

To convert mol C3H8 into mol CO2, we use the molar ratio between the two substances. The molar ratio is seen by the coefficients in front of the each substance in the reaction, so the ratio of C3H8 to CO2 is 1 to 3, with 3 moles of CO2 produced for every mole of C3H8 reacting.

[tex](170.1mol\ C_3H_8)(\frac{3mol\ CO_2}{1mol\ C_3H_8})=510.3mol\ CO_2[/tex]

To convert mol CO2 into molecules of CO2, we use Avogadro's number:
There are 6.022 × 10²³ molecules per mole of any substance:

[tex](510.3mol\ CO_2)(\frac{6.022*10^{23}mlcs\ CO_2}{mol\ CO_2})=3.07*10^{26}molecules\ CO_2[/tex]
We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.