Question 5. Need help!

View previous topic View next topic Go down

Question 5. Need help!

Post by miadisini10 on Thu Sep 02, 2010 6:57 am

how to do question number 5? can anyone please help me? I love you


Last edited by Admin on Thu Sep 02, 2010 7:02 am; edited 1 time in total (Reason for editing : Use a specific topic!)
avatar
miadisini10

Posts : 3
Join date : 2010-09-02
Age : 24

View user profile

Back to top Go down

Re: Question 5. Need help!

Post by hazirah ahmad on Thu Sep 02, 2010 6:59 am

what miaa?
me too! number 5??
avatar
hazirah ahmad

Posts : 2
Join date : 2010-09-02
Age : 24

View user profile

Back to top Go down

mia

Post by fatin izzati>kurtdorisia on Thu Sep 02, 2010 7:00 am

important thing b4 doing a calculation: CHEMICAL FORMULA
N2 + 2O2 --> 2NO2
14 + 2(16) = 46
avatar
fatin izzati>kurtdorisia

Posts : 9
Join date : 2010-09-01
Age : 24
Location : lembah keramat

View user profile

Back to top Go down

Guide to answer Q5

Post by Admin on Thu Sep 02, 2010 7:00 am

1. What is the molecular formula of nitrogen dioxide?
2. Determine the relative molecular mass based on the formula

Admin
Admin

Posts : 28
Join date : 2010-08-06

View user profile http://http//www.chem2u.blogspot.com

Back to top Go down

Answer!

Post by Athira Syafiqa Rosli on Thu Sep 02, 2010 7:01 am

NO2 14+16+16=46
avatar
Athira Syafiqa Rosli

Posts : 7
Join date : 2010-09-02
Age : 24
Location : Shah Alam

View user profile

Back to top Go down

Re: Question 5. Need help!

Post by nur farah anis on Thu Sep 02, 2010 7:02 am

add nitrogen and oxygen.. 14+16(2)=46 Smile
avatar
nur farah anis

Posts : 7
Join date : 2010-09-02
Age : 23
Location : sepang

View user profile

Back to top Go down

Re: Question 5. Need help!

Post by diyana adibah on Thu Sep 02, 2010 7:03 am

nitrogen dioxide is NO2 rite? so u jst hv to add 14 + 2(16) = 46
avatar
diyana adibah

Posts : 4
Join date : 2010-09-02

View user profile

Back to top Go down

hey

Post by miadisini10 on Thu Sep 02, 2010 7:05 am

thank youu Smile Like a Star @ heaven
avatar
miadisini10

Posts : 3
Join date : 2010-09-02
Age : 24

View user profile

Back to top Go down

sorry false fact

Post by fatin izzati>kurtdorisia on Thu Sep 02, 2010 7:06 am

not CHEMICAL FORMULA
but CHEMICAL EQUATION
avatar
fatin izzati>kurtdorisia

Posts : 9
Join date : 2010-09-01
Age : 24
Location : lembah keramat

View user profile

Back to top Go down

q.5

Post by Nur Fariha Md. Isa on Thu Sep 02, 2010 7:23 am

NO2 is 1 mol of nitrogen and 2 moles oxygen gas
N=14 O=16
so, 14 + 16(2) = 46
avatar
Nur Fariha Md. Isa

Posts : 2
Join date : 2010-09-02
Age : 24
Location : Kuala Lumpur

View user profile

Back to top Go down

Re: Question 5. Need help!

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum