IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: abuelzouz on May 10, 2010, 12:51:23 pm

Title: quick question
Post by: abuelzouz on May 10, 2010, 12:51:23 pm
hey..
im takin co-ordinated science nd i have paper 6 tomorrow..
but in on 09.. question3.. part (iv)
they say which is the most conc of the solutions..
the answer is supposed to be the solution which we used less no. of drops right? so its A.. right?!
they say in the ms its B :S
Title: Re: quick question
Post by: nid404 on May 10, 2010, 02:11:37 pm
upload the paper
Title: Re: quick question
Post by: abuelzouz on May 10, 2010, 02:17:11 pm
man u mods were not like you used 2 be.. its easy u can go 2 fep !!

here is it anyways!!

http://www.freeexampapers.us/IGCSE/Coordinated%20Science%20%28Double%20Award%29/CIE/2009%20Nov/0654_w09_qp_6.pdf
Title: Re: quick question
Post by: nid404 on May 10, 2010, 02:22:00 pm
We have our exams too...we can't really afford to spend that much time here now

if the conc is higher, more no of drops will be required to react with solution.

e.g a solution with 5mol/dm3 requires 2 drops to complete the reaction...a solution of 10mol/dm3 will definitely require more no of drops...

gettin it...it's more of stoichio