anonymous
  • anonymous
Will a precipitate form if 100ml of 1.0x10^-3 mol/L Pb(NO3)2 solution is added to 100ml of 2.0x10^-3 mol/L MgSO4 solution?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@Callisto can you help me?
Callisto
  • Callisto
Yes... PbSO4 is insoluble
Callisto
  • Callisto
\[Pb(NO_{3})_{2} (aq) + MgSO_{4} (aq) -> PbSO_{4}(s) + Mg^{2+}(aq) + 2NO_{3} ^{-}(aq)\]

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mos1635
  • mos1635
if Ksp of PbSO4 is given we could have a more acurate investigation.....
JFraser
  • JFraser
a ppt may or may not form, it depends on the concentrations. Ksp calculations will determine whether the combination of ions is concentrated enough to give a ppt.
Callisto
  • Callisto
I'm sorry!!! I haven't learnt anything about Ksp ... so I don't know that ppt may not form ... I'm sorry...
JFraser
  • JFraser
@Callisto you are generally correct, a ppt will probably form because PbSO4 is insoluble, but if the concentrations are weak enough, there won't be a ppt
Callisto
  • Callisto
@JFraser Thank you for giving more information. Consider this case, would there be any ppt?
JFraser
  • JFraser
give me a few minutes to work through the numbers, i have to go teach soon
Callisto
  • Callisto
Thank you!!!!
JFraser
  • JFraser
in this case,a ppt will not form. the concentration of the combined ions is less than the maximum allowable by the KSP
Callisto
  • Callisto
Sorry again.. I know I have no right to ask, but can you show how you get the answer?

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