Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 19: Problem 3

How will you prepare the following compounds? (a) Potassium ferrocyanide (b) Sodium nitroprusside

Short Answer

Expert verified
Potassium ferrocyanide is prepared by reacting Ferrous Sulphate (FeSO4) and Potassium Cyanide (KCN) in water. Sodium Nitroprusside is prepared by a reaction of Sodium Nitrite (NaNO2), Ferric Cyanide (Fe(CN)6) and Sodium Hydroxide (NaOH). The accuracy of the measurements of these reagents is paramount for the successful preparation of these compounds, and safety measures should always be prioritized in these preparations.

Step by step solution

01

Prepare Potassium Ferrocyanide

Potassium Ferrocyanide can be prepared by the reaction of Ferrous sulphate with Potassium Cyanide. The chemical equation for this reaction is: \[6 FeSO4 + 6 KCN + 6H2O \rightarrow K4[Fe(CN)6] \cdot 3H2O + 6K2SO4\] Start by mixing equimolar solutions of ferrous sulphate (FeSO4) and potassium cyanide (KCN) in water (H2O). Allow the reaction to proceed, and the resulting product is Potassium Ferrocyanide trihydrate (K4[Fe(CN)6] \cdot 3H2O), along with a byproduct of potassium sulphate (K2SO4).
02

Prepare Sodium Nitroprusside

Sodium Nitroprusside can be prepared by a reaction of Sodium Nitrite with Ferric Cyanide. The chemical reaction can be represented as: \[2 NaNO2 + Fe(CN)6 + 5 NaOH \rightarrow Na2[Fe(CN)5NO] \cdot 2H2O Begin this prep by mixing a solution of sodium nitrite (NaNO2) with solutions of Ferric Cyanide (Fe(CN)6) and Sodium Hydroxide (NaOH). Allow the reaction to take place to obtain Sodium Nitroprusside Dihydrate (Na2[Fe(CN)5NO] \cdot 2H2O).
03

Ensure Safety and Accuracy

When preparing these compounds, make sure that you handle all chemicals (especially Potassium Cyanide) with utmost care, employ protective clothing, and work under a fume hood to avoid harmful exposure. Always ensure the accuracy of measurements for all reagents to avoid any uncertain outcomes.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Discuss the preparation, properties and uses of potassium permanganate.

Give reasons for (a) Compounds of \(\mathrm{Ti}(+\| \mathrm{II})\) are strong reductants (b) \(\mathrm{CuSO}_{4}\) dissolves in ammonia.

Name the important alloys of the following elements: (a) Vanadium (b) Iron (c) Nickel

Give balanced chemical reactions for: (a) Treatment of acidified \(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\) with \(\mathrm{KI}\) (b) Treatment of acidified \(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\) with \(\mathrm{H}_{2} \mathrm{O}_{2}\) (c) Treatment of acidified \(\mathrm{KMnO}_{4}\) with oxalic acid (d) Treatment of \(\mathrm{K}_{4} \mathrm{Fe}(\mathrm{CN})_{6}\) with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) (e) Treatment of zinc chloride with sodium hydroxide

Discuss the general chemical behaviour of following elements: (a) Chromyl chloride (b) Potassium chromate (c) Pure \(\mathrm{MnO}_{2}\) (a) Chromium (b) Cobalt (c) Zinc
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Physical Chemistry

Read Explanation

The Earths Atmosphere

Read Explanation

Nuclear Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Chemical Analysis

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free