Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    5
    ReputationRep:
    A 0.216 g sample of an aluminium compound X reacts with an excess of water to produce a single hydrocarbon gas. This gas burns completely in O2 to form H2O and CO2 only. The volume of CO2 at room temperature and pressure is 108cm3 . What is the formula of X?

    A. Al2C3 B. Al3C2 C. Al3C4 D. Al4C3

    Please help me with this question. Answer scheme says it's D.
    Offline

    17
    ReputationRep:
    What have you tried, so far?
    • Thread Starter
    Offline

    5
    ReputationRep:
    (Original post by Pigster)
    What have you tried, so far?
    I tried using the general combustion equation but can't seem to get it. Can you please show me the working?
    Offline

    17
    ReputationRep:
    How many mol of C atoms are there in the 0.216 g of X?
 
 
 
Poll
Do you agree with the PM's proposal to cut tuition fees for some courses?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.