Chemistry

For complete combustion, 0. 100 mol of an alkane requires 22.8 dm3 of o2 measured at RTP.
Which alkane has undergone complete combustion?
A pentane
B hexane
C heptane
D octane

(edited 3 months ago)

Reply 1

charco

Study Forum Helper

Original post by ilayda 1234

For complete combustion, 0. 100 mol of an alkane requires 22.8 dm3 of o2 measured at RTP.
Which alkane has undergone complete combustion?
A pentane
B hexane
C heptane
D octane

... and your ideas are?

Reply 2

ilayda 1234

Original post by charco

... and your ideas are?

I don’t know that why I am asking for help

Reply 3

TypicalNerd

Original post by ilayda 1234

For complete combustion, 0. 100 mol of an alkane requires 22.8 dm3 of o2 measured at RTP.
Which alkane has undergone complete combustion?
A pentane
B hexane
C heptane
D octane

When a gas is at RTP, do you know what volume 1 mol of it should occupy?

Reply 4

ilayda 1234

Original post by TypicalNerd

When a gas is at RTP, do you know what volume 1 mol of it should occupy?

No can you just help me how do you get the answer

Reply 5

TypicalNerd

Original post by ilayda 1234

No can you just help me how do you get the answer

Unfortunately forum guidelines don’t allow me to give you the answer to your original question or a full solution. However, I can give you hints.

If I told you that at RTP, 1 mole of any gas occupies 24 dm^3, how many moles of oxygen must there be in the 22.8 dm^3?

From this, what is the reacting ratio of hydrocarbon to oxygen?