rob_1999
Badges: 0
Rep:
?
#1
Report Thread starter 4 years ago
#1
Hi there, I'm new to this, I'm currently in year 12 going to sit my AS Level in Chemistry in May and I'm really struggling with the maths parts of my revision and was hoping someone could help me?
Question I have is:-
"The student adds a lump of limestone with mass 0.13 g to 25.00 cm3 of 0.1 mol dm -3 hydrochloric acid and stirs until the reaction is finished, the solution is then filtered. The excess acid in the filtered solution reacts with 7cm3 of 0.1 mol dm -3 sodium hydroxide. The equations for the reactions are CaCO3 + 2HCl --> Ca Cl2 + CO2 + H2O

HCl + NaOH -->NaCl + H2O

Calculate the percentage of calcium carbonate in the limestone.

Any help would be greatly appreciated.

Many thanks
Rob
0
reply
TSR Jessica
Badges: 19
Rep:
?
#2
Report 4 years ago
#2
Sorry you've not had any responses about this.

Why not try posting in a specific subject forum- you might have more luck there.

Here's a link to our subject forum which should help get you more responses.

0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Current uni students - are you thinking of dropping out of university?

Yes, I'm seriously considering dropping out (22)
18.03%
I'm not sure (2)
1.64%
No, I'm going to stick it out for now (38)
31.15%
I have already dropped out (3)
2.46%
I'm not a current university student (57)
46.72%

Watched Threads

View All
Latest
My Feed