daisyfleur
Badges: 11
Rep:
?
#1
Report Thread starter 9 months ago
#1
hi guys i need help on these 2 questions i dont know how to answer it or the questions please help
pictures below >
0
reply
daisyfleur
Badges: 11
Rep:
?
#2
Report Thread starter 9 months ago
#2
this
Attached files
0
reply
daisyfleur
Badges: 11
Rep:
?
#3
Report Thread starter 9 months ago
#3
and this
Attached files
0
reply
Emily~3695
Badges: 15
Rep:
?
#4
Report 9 months ago
#4
This was my mock, so hopefully I can help for the mass of copper you need to do 114.38 ( tube a and contents after 6 minutes) as this is the mass at the end of the reaction when it should only be copper in the tube.
For the mass of water, you need to do The mass of tune B and contents at the end- contents at the start because originally there was no water in it so (123.38-120.93)
0
reply
Emily~3695
Badges: 15
Rep:
?
#5
Report 9 months ago
#5
For the 2nd question work out the moles of cu and water made, if the number of moles is the same then it must be equation 2, if copper has double the number of moles it must be equation 2, due to the ratio 2:1, hope this helps if you need help with anything else in happy to explain it to you 😊
0
reply
daisyfleur
Badges: 11
Rep:
?
#6
Report Thread starter 9 months ago
#6
(Original post by Emily~3695)
This was my mock, so hopefully I can help for the mass of copper you need to do 114.38 ( tube a and contents after 6 minutes) as this is the mass at the end of the reaction when it should only be copper in the tube.
For the mass of water, you need to do The mass of tune B and contents at the end- contents at the start because originally there was no water in it so (123.38-120.93)
do you have the mark scheme answer to it i find that the mark scheme answers give it step by step so i can understand where i went wrong or can you please type it up exactly ? for the answer i dont understand my annotations
0
reply
Emily~3695
Badges: 15
Rep:
?
#7
Report 9 months ago
#7
Sorry I don’t have the mark scheme I just remember doing these equations, I can write up my answers properly in the morning as if I was answering the questions if that would help 😊
0
reply
daisyfleur
Badges: 11
Rep:
?
#8
Report Thread starter 9 months ago
#8
(Original post by Emily~3695)
Sorry I don’t have the mark scheme I just remember doing these equations, I can write up my answers properly in the morning as if I was answering the questions if that would help 😊
please could you do it now if ok

also for this
Attached files
0
reply
Emily~3695
Badges: 15
Rep:
?
#9
Report 9 months ago
#9
Sorry I couldn’t do it last night, I can do it now if that’s ok 😊
0
reply
Emily~3695
Badges: 15
Rep:
?
#10
Report 9 months ago
#10
Name:  904B2B25-469E-42ED-A5F9-31A567433B90.jpg.jpeg
Views: 17
Size:  15.6 KBName:  0A8FE2C6-7E6A-452F-8B96-90BDE9514D62.jpg.jpeg
Views: 21
Size:  16.5 KB
Here you go 😊
Hope it’s not too late
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 (150)
14.62%
I'm not sure (45)
4.39%
No, I'm going to stick it out for now (305)
29.73%
I have already dropped out (27)
2.63%
I'm not a current university student (499)
48.64%

Watched Threads

View All