# What is the molar mass of FeSCN2+?

## What is the molar mass of FeSCN2+?

114 g/mol
The molecular weight of FeSCN2+ is 114 g/mol.

## How many moles are in FeSCN2+?

By spectroscopy and Beer’s Law, it is found that [FeSCN2+] at equilibrium is 1.50 x 10-4 M. The number of moles of FeSCN2+ present at equilibrium is found from the molarity and the volume of the solution (10.0 mL + 10.0 mL = 20.0 mL).

## What is the molar absorptivity of FeSCN2+?

Frank and Oswalt report a molar absorptivity (ε) for FeSCN2+ of 4700L/(mol*cm). Remember that your pathlength (b) is 1 cm for the Spec-20.

## What is the concentration of FeSCN2+?

The absorbance of this solution is measured, and the equilibrium FeSCN2+(aq) concentration is found to be 1.0 × 10 –3 M.

## What is the chemical formula for thiocyanate?

CNS-
Thiocyanate

PubChem CID 9322
Structure Find Similar Structures
Chemical Safety Laboratory Chemical Safety Summary (LCSS) Datasheet
Molecular Formula CNS-
Synonyms thiocyanate Thiocyanate ion Rhodanide Thiocyanate ion (1-) 302-04-5 More…

## How many moles are in Fe3+?

Ernest Z. The molar mass of Fe³⁺ is 55.845 g/mol. The only difference between an Fe atom and an Fe³⁺ ion is three electrons.

## What is molar absorptivity units?

Molar absorptivity is arbitrarily defined for thickness measured in centimeters and concentration in moles/liter. Since A is a pure number, molar absorptivity has the units liters/mole cm.

## How is molar absorptivity determined?

Divide the slope of the line by the path length (depth of the cuvette) to calculate molar absorptivity. Continuing our example: If 1.4 is the slope of the line and the path length is 0.5 cm, then the molar absorptivity is 1.4/0.5 = 2.8 L mol-1 cm-1.

## What is the concentration of Fe3+?

approximately 0.1 M
The Fe3+ concentration was approximately 0.1 M in Part 3; the change in its concentration should have been negligible.

## How do I calculate the concentration of a solution?

Divide the mass of the solute by the total volume of the solution. Write out the equation C = m/V, where m is the mass of the solute and V is the total volume of the solution. Plug in the values you found for the mass and volume, and divide them to find the concentration of your solution.

## Is thiocyanate acidic or basic?

Thiocyanate (also known as rhodanide) is the anion [SCN]−. It is the conjugate base of thiocyanic acid. Common derivatives include the colourless salts potassium thiocyanate and sodium thiocyanate. Organic compounds containing the functional group SCN are also called thiocyanates.