Asked by Beth
What is the molarity of a 15% solution of Ni3Fe(CN)6?
Answers
Answered by
MathMate
I believe nickel ferricyanide has the formula:
Ni<sub>3</sub>(Fe(CN)<sub>6</sub>)<sub>2</sub>
which makes quite a difference to the molarity. Please check the question.
If the 15% solution is mass/volume, then a litre contains 150g of the compound.
The RMM (relative molecular mass) can be obtained by summing the relative atomic mass of the individual elements.
Divide 150 g/l by the RMM gives the molarity in M.
Ni<sub>3</sub>(Fe(CN)<sub>6</sub>)<sub>2</sub>
which makes quite a difference to the molarity. Please check the question.
If the 15% solution is mass/volume, then a litre contains 150g of the compound.
The RMM (relative molecular mass) can be obtained by summing the relative atomic mass of the individual elements.
Divide 150 g/l by the RMM gives the molarity in M.