You are Here: Home

# helpppppppppppppppp exam is 2morrow

Announcements Posted on
Uni student? You could win a Samsung Galaxy S7 or £500 of travel vouchers by taking this quick survey 05-05-2016
Talking about ISA/EMPA specifics is against our guidelines - read more here 28-04-2016
1. pleaseeeeeeeeee can anyone solve this for me plzzzzzzzzzzz

In this question, give all values of pH to two decimal places.
Calculating the pH of aqueous solutions can involve the use of equilibrium constants
such as Kw and Ka
Kw is the ionic product of water. The value of Kw is 5.48 × 10
–14
mol
2
dm
–6
at 50 °C
Calculate the pH of pure water at 50°C
2. (Original post by moniasajid)
pleaseeeeeeeeee can anyone solve this for me plzzzzzzzzzzz

In this question, give all values of pH to two decimal places.
Calculating the pH of aqueous solutions can involve the use of equilibrium constants
such as Kw and Ka
Kw is the ionic product of water. The value of Kw is 5.48 × 10
–14
mol
2
dm
–6
at 50 °C
Calculate the pH of pure water at 50°C
Post in chemistry section and make the format clearer as i don't have a clue what it is meant to say.
3. kw = [H+]+[OH-]
kw= [H+]^2 (squared)- because pure water dissociates into equal amounts of h+ and oh-

then use pH= -log(H+)

Input values and you should get an answer

## 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: June 12, 2012
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

Poll

## All the essentials

### Essay expert

Learn to write like a pro with our ultimate essay guide.

### Create a study plan

Get your head around what you need to do and when with the study planner tool.

### Resources by subject

Everything from mind maps to class notes.

11 things A-level students wish they'd known before starting their course.

### Nailing the step up to A2

A2 is harder than AS: fact. But you can do it; here's how.

### Study tips from A* students

Students who got top grades in their A-levels share their secrets