Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
    • Thread Starter
    Offline

    13
    ReputationRep:
    My teacher has gave me a sheet with this question on it, and I don't quite understand what I'm supposed to do?

    All help appreciated!

    • Community Assistant
    • Study Helper
    Offline

    17
    ReputationRep:
    Community Assistant
    Study Helper
    (Original post by Josh-H)
    My teacher has gave me a sheet with this question on it, and I don't quite understand what I'm supposed to do?

    All help appreciated!

    You are supposed to calculate how many moles of each species will be present at equilibrium...
    Offline

    18
    So for the first one A + B ---> 2C

    ''A'' goes from 1.0 to 0.3 meaning that 0.7 moles of the reactant ''A'' have reacted to become products...as the ratio of A to B is 1:1 it must mean there is 0.3 moles of B at equilibrium too. Can you work how much of ''C'' there will be given that info?
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by EierVonSatan)
    So for the first one A + B ---> 2C

    ''A'' goes from 1.0 to 0.3 meaning that 0.7 moles of the reactant ''A'' have reacted to become products...as the ratio of A to B is 1:1 it must mean there is 0.3 moles of B at equilibrium too. Can you work how much of ''C'' there will be given that info?
    I got that bit, that's where I got confused, I didn't know if C was 1.4 or 0.6 (as its 2 mols so 2 x 0.3?) maybe neither?
    Offline

    18
    (Original post by Josh-H)
    I got that bit, that's where I got confused, I didn't know if C was 1.4 or 0.6 (as its 2 mols so 2 x 0.3?) maybe neither?
    Well if 0.7 moles of A (and 0.7 moles of B) reacted then twice that much of C is formed - so it's 1.4 moles
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by EierVonSatan)
    Well if 0.7 moles of A (and 0.7 moles of B) reacted then twice that much of C is formed - so it's 1.4 moles
    Oh yeh :P: sorry, thick moment. Cheers!
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: February 4, 2010
Poll
Do you agree with the proposed ban on plastic straws and cotton buds?

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.