How do you make 0.1 M ammonium thiocyanate?

Ammonium Thiocyanate (0.1 M) 

Molecular formula: NH₄SCN 

Molecular weight: 76.12 

Preparation: Dissolve 7.612 g of ammonium thiocyanate in sufficient water to produce  1000 mL. 

Standardization: Pipette 30.0 mL of 0.1 M silver nitrate into a glass stoppered flask,  dilute with 50 mL of water, add 2 mL of nitric acid and 2 mL of ferric ammonium sulfate solution, and titrate with the NH₄SCN solution to the first appearance of a red-brown color. 

Reaction: 

AgNO₃ + NH₄SCN → AgSCN↓ + NH₄NO₃ 

NH₄SCN + Fe⁺³ → [FeSCN]⁺² + NH₄ 

Factor Calculation: 

1 mole of NH₄SCN ≅ 1 mole of silver nitrate 

1000 mL of 1M NH₄SCN ≅ 169.87g of AgNO₃ 

1 mL of 0.1 M NH₄SCN ≅ 0.01698 g of AgNO₃

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