Physics, Chemistry and Biology: Post your doubts here!

Messages
11
Reaction score
2
Points
1
mole=volume x concentration
volume=mole x 24


4(c)(i) 0.002 (mol); 0.1 x 0.02dm3 (e.g 20cm3/1000)
4(c)(ii) 0.001 (mol); 0.002/2 (becuz its 2H2O2:1O2 SO 2:1)
4(c)(iii) 0.024 (dm3); 0.001 x 24
4(c)(iv) no change/ no effect; (as catalysts don't affect equilibrium and thus the volume of the reactants-it just speeds up the reaction)
4(c)(v) 0.048 (dm3 ); 0.024 x 2 (as concentration is doubled )-e.g 0.1mol/dm3 x 2 = 0.2 mol/dm3

Hope it helps :)
Good luck!
Thank you very much sir, for helping me again, god bless you
 
Messages
11
Reaction score
0
Points
11
If you are struggling with physics O level or IGCSE, subscribe my channel and message me through comments ofr email on my about page, to get a video response:
 
Top