Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 3 | Chemistry
One Answer Below
Anyone can contribute an answer, even non-tutors.
please help with 7b and 7c!!
I do not understand how to get part b so it would be good if you could explain it to me :)
Date Posted: 6 years ago
Views: 760
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
This is just part of the solution. Once you have the number of mol of HCl in 25cm3 of solution, scale it up to 500cm3 proportionally. That would be the amount dissolved originated from the gas.
From there, work out mol of XCl2. With mol and mass, you can find Mr of XCl2. You should know what to do next then...
From there, work out mol of XCl2. With mol and mass, you can find Mr of XCl2. You should know what to do next then...
Date Posted:
6 years ago
Why is it NaOH? shouldn’t it be KOH?
You are absolutely right. I made a careless mistake. Sorry.
Did you managed to complete the question?
360 Tutoring Program