If you have any question on chem p6 im ready you guys. Don't Worry!!

[Mahdi]

In discharge of anions (negative)..i suppose OH- is the easiest among Cl-, Br- and I-
Doesn't the order go like SO4, NO3, Cl, Br, I and finally OH ??

 

[Mahdi]

What is the difference between burette and a tap funnel?

 

[Hamzeh S]

What is the difference between burette and a tap funnel?

burette has the lines which indicate numbers you know the lines like the one on the ruler

 

[Hamzeh S]

In discharge of anions (negative)..i suppose OH- is the easiest among Cl-, Br- and I-
Doesn't the order go like SO4, NO3, Cl, Br, I and finally OH ??

no its so4 no3 oh then the cl , br , i

 

[Hamzeh S]

Guys Someone Post the appearances of the solids and liquids we may be asked about PLZ

 

[Mahdi]

no its so4 no3 oh then the cl , br , i

thank you..all the best!

 

[Mahdi]

burette has the lines which indicate numbers you know the lines like the one on the ruler

thanks again!

 

[tribianni]

in contact wid watr cobalt chloride ppr turns pink to blue or blue to pink??

 

[Lost_Life]

anyhydrous goes pink hydrius goes blue

 

[tribianni]

oh ok thnxx

 

[ali khan saaed]

hey i have a question in oct/nov 2011 paper 61 Q2 part (C) (ii)
i hope u can help me

1: recording errror
2: Plotting error
3: {qualified } timing error i dont know what qualified meanz
4: temperature variation

 

[ali khan saaed]

anyhydrous goes pink hydrius goes blue

noooooooo,,, if you add water :
anhydrous copper(II) sulphate will goo blue
and cobalt(II) chloride GOES FROM BLUE TO PINK

 

[tribianni]

which 1 is ryt now ///...im confused 0_O

 

[Ahmed Alaa El-shamy]

what is meant by saturated or explain the term saturated?

 

[mrnt3250]

which 1 is ryt now ///...im confused 0_O

Anhydrous Cobalt (II) Chloride : Blue
Hydrated Cobalt (II) Chloride : Red (pink)

Anhydrous Copper (II) Sulfate : White
Hydrated Copper (II) Sulfate : Blue

 

[Legendary3li]

Saturated means no more solute can dissolve in the solvent.

 

[Roselian]

Question on EQUILIBRIUM...

When pressure is increased, the equilibrium position favors the side with fewer molecules, right? So if the side with fewer molecules is on the left, does the position of equilibrium move to the left?

 

[mrnt3250]

Question on EQUILIBRIUM...

When pressure is increased, the equilibrium position favors the side with fewer molecules, right? So if the side with fewer molecules is on the left, does the position of equilibrium move to the left?

Left side is the reactants, right side is the product (usually).
So if the left side has fewer molecules, then some of the product will be decomposed back to reactants.

 

[Lost_Life]

just did the exam

 

[Roselian]

Left side is the reactants, right side is the product (usually).
So if the left side has fewer molecules, then some of the product will be decomposed back to reactants.

I'm a bit confused...I mean in a question where they say "where does the equilibrium shift to" would I say it shifts to the left cuz it's favored, and so more is produced of the "favored" side? Or would I say it moves to the right?