vera_ewing
  • vera_ewing
chem
Chemistry
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vera_ewing
  • vera_ewing
chem
Chemistry
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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vera_ewing
  • vera_ewing
vera_ewing
  • vera_ewing
rvc
  • rvc
i dont know this i havent revised :(

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vera_ewing
  • vera_ewing
sweetburger
  • sweetburger
Im thinking [x]/[.25][.25]=3.0x10^-3 which becomes x=.003x.0625=.00019 which is equivalent to 1.9x10^-4M being the concentration of Fe3+. If you are wondering why there is only one x in the numerator it is because the Ag is a solid and therefore falls out of the equation.
anonymous
  • anonymous
Use Kc= (concentration of product1^mol * concetration of product2^mol)/(concentration of reactant1^mol * concentration of reactant 2^mol) Also, take note that Kc works for Aqueous substances only.
vera_ewing
  • vera_ewing
@Hoslos So the answer is A?
anonymous
  • anonymous
Making substitutions, we get 3*10^-3= (Fe3+)^1/(0.25^1 * 0.25^1) Fe3+= 0.625* (3*10^-3)= 1.875*10^-3 or A.
vera_ewing
  • vera_ewing
Thank you!
anonymous
  • anonymous
Fe3+= 0.0625 * 0.003= 1.875*10^-4 or A.
sweetburger
  • sweetburger
Looks good :)
anonymous
  • anonymous
Yes, was because of the mistake in the significant figures.

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