Question

Calculate the number of CO2 molecules produced on combustion of 3 grams of carbon ?​

Answer 1

Equation:

C + O2 ----------> CO2

=> From the equation, 1 part of Carbon reacts with 1 part of Oxygen to give 1 part of Carbon Dioxide.

Molar mass of Carbon = 12 grams per mole

So, 3 grams of Carbon is 3/12 moles => 1/4 moles => 0.25 moles of Carbon

=> So, 1 part of carbon is 0.25 moles (for this reaction)

Hence, 1 part of CO2 is also 0.25 moles.

We know that 1 mole of any compound has 6.022 * 10^23 molecules.

=> So, 0.25 moles of CO2 has 0.25*6.022*10^23 molecules of CO2.

=> 1.5055* 10^23 molecules of Carbon Dioxide will be formed.

Answer 2

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LeelaGhosh1

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Equation:

C + O2 ----------> CO2

=> From the equation, 1 part of Carbon reacts with 1 part of Oxygen to give 1 part of Carbon Dioxide.

Molar mass of Carbon = 12 grams per mole

So, 3 grams of Carbon is 3/12 moles => 1/4 moles => 0.25 moles of Carbon

=> So, 1 part of carbon is 0.25 moles (for this reaction

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