An inorganic chemist isolates a compound which she thinks is potassium ferrocyanide: K4Fe(CN)6-3(H2O). she carries out...

An inorganic chemist isolates a compound which she thinks is potassium ferrocyanide: K4Fe(CN)6-3(H2O). she carries out a redox determination for iron yielding the following results: 13.3%, 13.5%, 13.4%, 13.3%, 13.5% Fe by weight. At 95% confidence, has she proven that the compound is not potassium ferrocyanide?

Expert Solution

According to the formula of potassium ferrocyanide the molecular weight of

According to this molecular weight the mass fraction percentage of iron in compound is

The average yield of iron through redox determination is

The observed mass fraction is very near to calculated mass fraction. Therefore the compound is at 95% confidence potassium ferrocyanide.

queen_honey_blossom answered 3 years ago

What is the name of the coordination compound K3[Fe(CN)6]? a. potassium iron (III) hexacyanide b. potassium...

What is the name of the coordination compound K3[Fe(CN)6]? a. potassium iron (III) hexacyanide b. potassium hexacyanoferrate (II) c. potassium hexacyanoferrate (III) d. ferrous potassium cyanide e. potassium iron cyanide

cA) [Mn(H2O)6]3+ (sp3d2 octahedral) B) [Mn(NO2)6]3- (d2sp3 octahedral) C) [Ni(CN)4]2- (square planar)

Which has the greater octahedral field splitting energy? (Δo) [Cr(H2O)6]2+ or [Cr(H2O)6]3+ Blank 1. Fill in...

Which has the greater octahedral field splitting energy? (Δo) [Cr(H2O)6]2+ or [Cr(H2O)6]3+ Blank 1. Fill in the blank, read surrounding text. [Fe(NO2)6]3- or [FeCl6]3- Blank 2. Fill in the blank, read surrounding text. (Please Note: There was typo that was corrected in the formula. If you answered using either [Fe(NO2)6]2+ or [Fe(Cl6)6]2+ and were correct, you will still receive full credit). Na4[V(CN)4(OH)2] or Na4[Ta(CN)4(OH)2]

Question

An inorganic chemist isolates a compound which she thinks is potassium ferrocyanide: K4Fe(CN)6-3(H2O). she carries out...

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What is the name of the coordination compound K3[Fe(CN)6]? a. potassium iron (III) hexacyanide b. potassium...

cA) [Mn(H2O)6]3+ (sp3d2 octahedral) B) [Mn(NO2)6]3- (d2sp3 octahedral) C) [Ni(CN)4]2- (square planar)

Which has the greater octahedral field splitting energy? (Δo) [Cr(H2O)6]2+ or [Cr(H2O)6]3+ Blank 1. Fill in...