You are Here: Home

# [HELP] Calculaion/titration questions. Edexcel GCE Chemistry Watch

Attached Images

3. i'm not sure but i think; 1a) moles of Li = mass/molar mass= 0.120/6.9= 0.0173
ratio of Li to H is 2:1 so, 0.0173/2= 0.0087 mol of Hydrogen
volume of H= mol/molar volume= 0.0087 * 24 dm3= 0.2 dm3
4. (Original post by f999)
i'm not sure but i think; 1a) moles of Li = mass/molar mass= 0.120/6.9= 0.0173
ratio of Li to H is 2:1 so, 0.0173/2= 0.0087 mol of Hydrogen
volume of H= mol/molar volume= 0.0087 * 24 dm3= 0.2 dm3
Specific temp and pressure though so I ended up going with pv=nRt

Still need help with the second page

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: June 9, 2016
Today on TSR

### Last-minute PS help

100s of personal statements examples here

### Loneliness at uni

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• 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

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