Question

Calculate the mass of carbon present in 0.1 mole of sodium ferricynide

Answer 1

I think it is K4[Fe(CN)]6 (Potassium ferrocyanide)

Molar mass of Given compound is 368.35 g/mol.

molar mass means mass of 1 mole of substances.

1 mole Potassium ferrocyanide contains 12 x 6 grams of carbon.

0.5 moles contains 12 x 3 = 36 grams of carbon.

Answer 2

The mass of carbon present in given amount of sodium ferricyanide is 7.2 grams

Explanation:

We are given:

Moles of sodium ferricyanide = 0.1 moles

A chemical compound named sodium ferricyanide. The chemical formula for this compound is $Na_4Fe(CN)_6$

This compound is formed by the combination of 4 moles of sodium, 1 mole of iron, 6 moles of carbon and 6 moles of hydrogen.

To calculate the mass for given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of carbon = $(6\times 0.1)=0.6mol$

Molar mass of carbon = 12 g/mol

Putting values in above equation, we get:

$0.6mol=\frac{\text{Mass of carbon}}{12g/mol}\\\\\text{Mass of carbon}=(0.6mol\times 12g/mol)=7.2g$

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