Chemistry > AQA > AQA_A Level Chemistry Paper 1_Question Paper 2022 | Practice Paper 1 (All)

AQA_A Level Chemistry Paper 1_Question Paper 2022 | Practice Paper 1

Document Content and Description Below

AQA A Level Chemistry Paper 1 Question Paper 2022 Practice Paper 1 - - - 1 In this question, give all values of pH to 2 decimal places. (a) The ionic product of water has the symbol Kw (i) Wr... ite an expression for the ionic product of water. __________________________________________________________ (1) (ii) At 42°C, the value of Kw is 3.46 × 10−14 mol2 dm−6. Calculate the pH of pure water at this temperature (to 2 decimal places). __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ (2) (iii) At 75 °C, a 0.0470 mol dm–3 solution of sodium hydroxide has a pH of 11.36. Calculate a value for Kw at this temperature. __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ (2) A-LEVEL CHEMISTRY Name: Practice Paper 1 Maximum marks: 105 Time allowed: 2 hours These questions are from past papers covering topics and skills based on the advance information to help you prepare for the exams this summer. Answer all questions in the spaces provided. You will need the Periodic Table/Data Booklet This document is licensed to Haggerston School - MB260045Page 2 (b) Methanoic acid (HCOOH) slightly dissociates in aqueous solution. (i) Write an equation for this dissociation. __________________________________________________________ (1) (ii) Write an expression for the acid dissociation constant Ka for methanoic acid. __________________________________________________________ __________________________________________________________ (1) (iii) The value of Ka for methanoic acid is 1.78 × 10−4 mol dm−3 at 25 °C. Calculate the p - - - [Show More]

Last updated: 1 year ago

Preview 1 out of 17 pages

Add to cart

Instant download

We Accept:

We Accept
document-preview

Buy this document to get the full access instantly

Instant Download Access after purchase

Add to cart

Instant download

We Accept:

We Accept

Reviews( 0 )

AQA

$6.50

Add to cart

We Accept:

We Accept

Instant download

Can't find what you want? Try our AI powered Search

OR

REQUEST DOCUMENT
386
0

Document information


Connected school, study & course


About the document


Uploaded On

May 30, 2022

Number of pages

17

Written in

Seller


seller-icon
A-Level Guru

Member since 2 years

525 Documents Sold


Additional information

This document has been written for:

Uploaded

May 30, 2022

Downloads

 0

Views

 386

Document Keyword Tags

Recommended For You

Get more on AQA »
What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Browsegrades · High quality services·