Aoa everyone
this is my 1st post .
i have some problems in p5 of chemistry.
Q1. how do we know which values come on x-axis and y-axis of the graph?
wot i figured was that
(e.g) 9701/05/O/N/08
2a) use the additional column of the table to record the charge passes and the mass of copper deposited on the cathode
is may chrged passed(X-axis) mass of cu deposited (y-axis).. same is with the rest of the Qz
am i correct?
Q2. 9701/05/M/J 09
Q1c part 2 we are given with
5mol dm-3 h2so4
distill water
solid cerium (iv) sulphate
(i) H2So4 ke the number and conc of the solutions to be prepared.
wot i wrote was
* 1 mol dm-3 H2So4
20g acid
80g water
* 2mol dm-3 h2so4
40g acid
60g water
*3mol dm-3 h2so4
60g acid
40g water
*4 mol dm-3 h2so4
80g acid
20g water
*5mol dm-3 h2so4
100g acid
0 g water
is this correct?
marking scheme may cm3 may ha. how to get it?
Q3 independent and dependent variable kya hotay hain? and kasay pta chalta ha konsa independent ha and kon sa dependent?
this is my 1st post .
i have some problems in p5 of chemistry.
Q1. how do we know which values come on x-axis and y-axis of the graph?
wot i figured was that
(e.g) 9701/05/O/N/08
2a) use the additional column of the table to record the charge passes and the mass of copper deposited on the cathode
is may chrged passed(X-axis) mass of cu deposited (y-axis).. same is with the rest of the Qz
am i correct?
Q2. 9701/05/M/J 09
Q1c part 2 we are given with
5mol dm-3 h2so4
distill water
solid cerium (iv) sulphate
(i) H2So4 ke the number and conc of the solutions to be prepared.
wot i wrote was
* 1 mol dm-3 H2So4
20g acid
80g water
* 2mol dm-3 h2so4
40g acid
60g water
*3mol dm-3 h2so4
60g acid
40g water
*4 mol dm-3 h2so4
80g acid
20g water
*5mol dm-3 h2so4
100g acid
0 g water
is this correct?
marking scheme may cm3 may ha. how to get it?
Q3 independent and dependent variable kya hotay hain? and kasay pta chalta ha konsa independent ha and kon sa dependent?