P5 chemistry..help

[BURHAN UL HAQ]

yar i have p5 chemistry tomorrow..plz help me...give me some tips..method to find out solubility...and most importantly use of significant figures in molar calculations..e.g how many s.f for moles etc

 

[Ali23]

Any GUESSSSS PAPER???

 

[larina]

yar i have p5 chemistry tomorrow..plz help me...give me some tips..method to find out solubility...and most importantly use of significant figures in molar calculations..e.g how many s.f for moles etc

the formula is given so need need to worry for that. IN CASE something happens... percentage solubility is mass of solid in saturated solution divided by mass of water n saturated solution * 100

 

[nonamehapazard]

is it mass of solid

the formula is given so need need to worry for that. IN CASE something happens... percentage solubility is mass of solid in saturated solution divided by mass of water n saturated solution * 100

is it mass of water and saturated soln or mass of water in saturated soln?

 

[vaibhavnatarajan]

yar i have p5 chemistry tomorrow..plz help me...give me some tips..method to find out solubility...and most importantly use of significant figures in molar calculations..e.g how many s.f for moles etc

http://www.xtremepapers.com/community/threads/chemo-p5-tips.5917/

lot of tips here

 

[smartangel]

http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w11_qp_51.pdf
plz tell me what scale to take an the x-axis!! i cant figure it out..!

 

[sararash]

Heyyyy.........how do we find the solublity for pottasium chlorate........in summer 2011 p.52 Q.2.

 

[sararash]

http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w11_qp_51.pdf
plz tell me what scale to take an the x-axis!! i cant figure
ALWAYZ TAKE THE INDEPENDENT VARIABLE ON X-AXIS

 

[larina]

is it mass of solid

is it mass of water and saturated soln or mass of water in saturated soln?

mass of solute in saturated solution/mass of water in saturated solution *100

 

[smartangel]

i know that..i meant numerical values... i cant think of a suitable scale such that 75% of graph is covered!!

 

[usama1993]

Can anyone please help me with the apparatus arrangement of 9701/52/Nov2009
Its urgent please !!
http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w09_qp_52.pdf

 

[shyqueen]

in nov 09/52 ques no 3(a) how do i knw dat hav to calculate da mass ratio ov copper to oxygen?
plz help

 

[sararash]

Can someone plz xplain Q1 h and i in summer 2010 p.51,.......helpp

 

[doc.ahmed]

please tell me how to make construction lines please

 

[sararash]

Take one point on x axis nd draw a line from dat point till it touches the slope and take the corresponding y value by drawing a line towards y.........u got.....its looks lyk l written upside down...........u thn hav to take the ratio betwen x and y value.........the line is the same lyk the one we make for taking gradient the only difference is that here v make only one line.......nd take only one x value nd one y value.