Ksp calculation

[mcarbonell]

Hello, could someone help me how to answer this:

10.5 grams of Ba(NO3)2 will dissolve into 100 grams of water to make a saturated solution at 25 Cº. Calculate the Ksp of Ba(NO3)2 at 25Cº.

The answer to this question is 2.59 x 10^-1

[SynX]

Hello, could someone help me how to answer this:

10.5 grams of Ba(NO3)2 will dissolve into 100 grams of water to make a saturated solution at 25 Cº. Calculate the Ksp of Ba(NO3)2 at 25Cº.

The answer to this question is 2.59 x 10^-1

I thought you were talking about the Kerbal Space Program, and ask people to calculate how much delta-v to get to get to other planets...

[fun_jirachi]

Hello, could someone help me how to answer this:

10.5 grams of Ba(NO3)2 will dissolve into 100 grams of water to make a saturated solution at 25 Cº. Calculate the Ksp of Ba(NO3)2 at 25Cº.

The answer to this question is 2.59 x 10^-1

Hey there!

The equation for this reaction is Ba(NO₃)_2(s) ⇌ Ba²⁺_(aq) + 2NO₃^-_(aq). This indicates that K_sp = [Ba²⁺][NO₃^-]², and since these concentrations are equal at equilibrium, K_sp can be expressed in terms of the solubility s by K_sp=4s³. Now, the solubility is given by c = n/V, or m / (MM*V), which is just 10.5/(261.337*0.1). Sub this into the above expression and you should get the K_sp value for barium nitrate.

Hope this helps

[Hawraa]

Hello, could someone help me how to answer this:

10.5 grams of Ba(NO3)2 will dissolve into 100 grams of water to make a saturated solution at 25 Cº. Calculate the Ksp of Ba(NO3)2 at 25Cº.

The answer to this question is 2.59 x 10^-1

Hi,
I know you posted this ages ago, but I've just came across it and thought I might as well post my working out