Question

chem

Answer 1

@rvc

Answer 2

i dont know this
i havent revised :(

Answer 3

@Hoslos

Answer 4

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.

Answer 5

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.

Answer 6

@Hoslos So the answer is A?

Answer 7

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.

Answer 8

Thank you!

Answer 9

Fe3+= 0.0625 * 0.003= 1.875*10^-4 or A.

Answer 10

Looks good :)

Answer 11

Yes, was because of the mistake in the significant figures.