You are Here: Home

# Interpreting Kinetics Data Question

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. Hi,

I'm trying to do a homework sheet and I don't entirely understand the question, I'm on Q1 part 1. My teacher thought it might have been a mistake on their part at first but now looking at it he said "consider the volume and how that affects the concentration" but I still can't work it out.

The pictures attached show the data and the questions. Any help would be greatly appreciated.

Attachment 584770584772
Attached Images

2. (Original post by Blake Jones)
Hi,

I'm trying to do a homework sheet and I don't entirely understand the question, I'm on Q1 part 1. My teacher thought it might have been a mistake on their part at first but now looking at it he said "consider the volume and how that affects the concentration" but I still can't work it out.

The pictures attached show the data and the questions. Any help would be greatly appreciated.

Attachment 584770584772
the concentration of each reagent is the number of moles of that reagent divided by the total volume of the mixture.Mixture A has a total volume of 400cm^3Mixture B has a total volume of 200cm^3

hopefully then you can see that if (for example) mixture A has 20cm^3 of a reagent and mixture B has 10cm^3 of that reagent, then the concentration of that reagent is the same in both mixtures (twice as much reagent in twice as much volume is the same concentration).

Hope that helps
3. (Original post by MexicanKeith)
the concentration of each reagent is the number of moles of that reagent divided by the total volume of the mixture.Mixture A has a total volume of 400cm^3Mixture B has a total volume of 200cm^3

hopefully then you can see that if (for example) mixture A has 20cm^3 of a reagent and mixture B has 10cm^3 of that reagent, then the concentration of that reagent is the same in both mixtures (twice as much reagent in twice as much volume is the same concentration).

Hope that helps
Oh I see! Thank you so much that's really helpful!

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: October 6, 2016
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:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

### Who would you like to thank?

Poll
Study resources

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.