Trusted by millions of Kenyans
LoginRegister
Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers
Or go directly to:
Class notes Holiday assignments Topical questions Other resources

Two carbon electrodes were placed in a flask containing 50cm3of 0.1 M barium hydroxide solution and connected in series with the 12 volt supply of...

Two carbon electrodes were placed in a flask containing 50cm3
of 0.1 M barium hydroxide solution and connected in series
with the 12 volt supply of direct current electricity and a lamp.
1.0M sulphuric acid was slowly run into the solution from a burette until neutralization occurred.
a) What would you see in the flask when the first few drops of acid are added?
b) At the neutrality point, the lamp ceases to glow, explain why?
c) What would you see if more 1.0 M sulphuric acid were now added

Answers

john
a) White ppt
b) All the barium ions that were conducting electricity were precipitated
c) The lamp glows again
john3 answered the question on November 8, 2017 at 06:15

Answer Attachments

Next: Water was added to lead (II) nitrate by a student. She divided the resulting solution into four, state the observation made after subjecting them to...

Previous: List and briefly explain macroeconomic problems affecting less developed countries

View more Chemistry Questions and Answers  |  Return to Questions Index

Exams With Marking Schemes

Related Questions