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pv = nrt question

Alkane X can be used as a fuel.

Complete combustion of 0.0117 mol of X produces 2.00 × 10–3 m3 of carbon dioxide gas,measured at 24.0 °C and 101 kPa.

Determine the molecular formula of X.Show all your working


Thanks for the help :smile:
(edited 7 years ago)
Original post by _Lizabeth_
Alkane X can be used as a fuel.

Complete combustion of 0.0117 mol of X produces 2.00 × 10–3 m3 of carbon dioxide gas,measured at 24.0 °C and 101 kPa.

Determine the molecular formula of X.Show all your working


Thanks for the help :smile:


It's not help if we tell you the answer.

What exactly are you having trouble with?

Do you know how to work out the moles of gas using the ideal gas equation (which you have in the title)?
Convert to the correct units.
What out number of moles using ideal gas equation
Mr = mass/moles
Is heptane the correct answer?
Original post by Ethan9133
Is heptane the correct answer?


Yes
How many moles of CO2

Spoiler

What is Ratio of the moles of X to moles CO2

Spoiler

What is the formula of X

Spoiler

Original post by Ethan9133
How many moles of CO2

Spoiler


What is Ratio of the moles of X to moles CO2

Spoiler


What is the formula of X

Spoiler




How did you do the second part ?
I do not understand this question, nor do I understand the tips given.
Original post by charco
It's not help if we tell you the answer.

What exactly are you having trouble with?

Do you know how to work out the moles of gas using the ideal gas equation (which you have in the title)?


🤣😂🤣

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