Question

the amount of oxygen is required to combust The 240g of carbon​

Answer 1

Answer:

the answer is the given question is 240g of carbon

Answer 2

The amount of oxygen gas required is 640 grams

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$     .....(1)

Given mass of carbon = 240 g

Molar mass of carbon = 12 g/mol

Putting values in equation 1, we get:

$\text{Moles of carbon}=\frac{240g}{12g/mol}=20mol$

The chemical equation for the combustion of carbon follows:

$C+O_2\rightarrow CO_2$

By Stoichiometry of the reaction:

1 mole of carbon reacts with 1 mole of oxygen gas

So, 20 moles of carbon will react with = $\frac{1}{1}\times 20=20mol$ of oxygen gas

Now, calculating the mass of oxygen gas from equation 1, we get:

Molar mass of oxygen gas = 32 g/mol

Moles of oxygen gas = 20 moles

Putting values in equation 1, we get:

$20mol=\frac{\text{Mass of oxygen gas}}{32g/mol}\\\\\text{Mass of oxygen gas}=(20mol\times 32g/mol)=640g$

Learn more about number of moles and stoichiometry:

https://brainly.in/question/13443844

https://brainly.in/question/13089062

#learnwithbrainly