Practical Manual Inorganic Chemistry III
- Sciences
- 200 level
- 2 credit units
- 46 pages
- 1 units
This course, Practical Inorganic Chemistry III, is designed to expose students to the major reactions of transition elements through hands-on practical sessions. The course consists of nine practical experiments, some of which are divided into multiple parts. Students will learn about precipitation reactions, transitional properties of d-block elements, and the chemistry of various elements like vanadium, chromium, manganese, iron, and copper. Laboratory safety regulations are emphasized to ensure a safe learning environment.
About this course
- Difficulty
- Intermediate
- Study hours
- 45 hours
- Maths
- Basic
- Content
- Practical, problem solving
- Practical work
- Yes
- CHM101
- CHM102
- CHM201
- Assignments
- Tutor marked assessments
- Final examination
What you'll read
The real module and unit structure of CHM291, taken from the course material NOUN publishes.
One paragraph, so you can see how it reads
CHM291 · CHM291
All rights reserved. No part of this book may be reproduced, in any form or by any means, without permission in writing from the publisher.
What you should be able to do
- Identify ions present in aqueous solutions via precipitation reactions.
- Examine the transitional properties of d-block elements.
- Illustrate the different oxidation states of vanadium and chromium.
- Investigate the uncommon oxidation states of manganese.
- Analyze iron tablets and double salts using redox titrations.
- Prepare coordination compounds such as potassium tris-oxalatoferrate(III)trihydrate.
- Identify colors associated with ligand changes in copper(II) coordination compounds.
- Synthesize chloropentaaminecobalt(III)chloride.
What it prepares you for
- Laboratory Technician
- Chemical Analyst
- Quality Control Chemist
- Research Assistant
- Pharmaceuticals
- Environmental Monitoring
- Chemical Manufacturing
- Food Industry
- Titration apparatus
- Analytical balance
- Spectrophotometer (optional)
Where it gets hard
The units students slow down on, and what makes each one heavy.
- Module 1: Precipitation Reactions and D-Block Elements
Unit 2: Investigation of Transitional Properties of D-Block Elements
Requires understanding of complex reactions involving multiple reagents and careful observation of subtle color changes to infer the identities of precipitates.
- Module 3: Chemistry of Manganese
Unit 5: Chemistry of Manganese
Involves multiple methods and requires careful control of pH and reagent concentrations to observe the different oxidation states of manganese.
- Module 6: Synthesis of Chloropentaamine Cobalt (III) Chloride
Unit 9: Preparation of Chloropentaamine Cobalt (III) Chloride, [Co(NH3)5Cl]Cl2
Requires precise measurements, careful control of temperature, and proper washing techniques to isolate the pure product.
A suggested way through it
13 weeks, about 36 hours in total. Yours will differ.
- Week 1Module 1: Precipitation Reactions and D-Block Elements
Unit 1: Precipitation Reactions · 2 hours
Read the introduction to precipitation reactions.. Perform the experiment to test the solubility of different salts in water.. Observe and record the color changes upon addition of NaOH.. Infer the identity of the precipitates formed..
- Week 2Module 1: Precipitation Reactions and D-Block Elements
Unit 2: Investigation of Transitional Properties of D-Block Elements · 3 hours
Study the transitional properties of d-block elements.. Perform Experiment 2A involving reactions with NaOH, NH3, Na2CO3, NH4SCN, HCl + H2S, and NaOCl + heat.. Record observations and identify complex formation or changes in oxidation states..
- Week 3Module 2: Chemistry of Vanadium and Chromium
Unit 3: Chemistry of Vanadium · 3 hours
Study the introduction to the chemistry of vanadium.. Perform the experiment involving the reduction of ammonium vanadate(V) with zinc powder.. Observe and record the color changes indicating different oxidation states of vanadium.. Add acidified potassium permanganate to re-oxidize vanadium and note the color changes..
- Week 4Module 2: Chemistry of Vanadium and Chromium
Unit 4: Chemistry of Chromium (Part A) · 2 hours
Study the introduction to the chemistry of chromium.. Perform Part A of Experiment 4 involving the change of oxidation state from +3 to +6.. Dissolve chromium(III) chloride hexahydrate and react it with potassium hydroxide and hydrogen peroxide.. Isolate and weigh the orange crystals formed..
Unit 4: Chemistry of Chromium (Part B) · 1 hour
Continue with Part B of Experiment 4 involving the change of oxidation state from +6 to +3 to +2.. React potassium dichromate with sulphuric acid and zinc dust.. Expose the mixture to air and record observations..
- Week 5Module 3: Chemistry of Manganese
Unit 4: Chemistry of Chromium (Part C) · 2 hours
Complete Experiment 4 with Part C involving the reduction of dichromate(VI) ions to chromate(III) ions by hydrogen peroxide.. Add hydrogen peroxide to potassium dichromate and note the changes.. Study the introduction to the chemistry of manganese..
- Week 6Module 3: Chemistry of Manganese
Unit 5: Chemistry of Manganese (Method A) · 2 hours
Perform Method A of Experiment 5 involving the reaction of potassium manganate(VII) with manganese(IV) oxide under different pH conditions.. Observe and record the color changes and filter the mixtures..
Unit 5: Chemistry of Manganese (Method B) · 1 hour
Continue with Method B of Experiment 5 involving the formation of Mn(III) by reacting manganese(II) sulphate with potassium manganate(VII) in concentrated sulphuric acid.. Dilute the solution and note any color changes..
- Week 7Module 4: Redox Reactions of Iron and Coordination Compound Preparation
Unit 5: Chemistry of Manganese (Method C) · 3 hours
Complete Experiment 5 with Method C involving the reaction of manganese(II) sulphate with sodium hydroxide and manganese(IV) oxide.. Observe and record any changes in the test tubes.. Study the introduction to redox reactions of iron..
- Week 8Module 4: Redox Reactions of Iron and Coordination Compound Preparation
Unit 6: Redox Reactions of Iron (Part A) · 3 hours
Perform Part A of Experiment 6 involving the analysis of iron tablets.. Grind up ferrous sulphate tablets and titrate with potassium manganate(VII).. Prepare a titration table and calculate the mass of iron per tablet..
- Week 9Module 5: Coordination Compound Preparation and Ligand Changes
Unit 6: Redox Reactions of Iron (Part B) · 3 hours
Continue with Part B of Experiment 6 involving the analysis of a double salt.. Prepare a standard solution of the double salt and determine the iron(II) and copper(II) content by titration.. Prepare titration tables and calculate the molar ratio of iron(II) to copper(II)..
- Week 10Module 5: Coordination Compound Preparation and Ligand Changes
Unit 7: Preparation of a Coordination Compound · 3 hours
Study the introduction to coordination compounds.. Perform Experiment 7 involving the preparation of potassium tris-oxalatoferrate(III)trihydrate.. Weigh iron(III) nitrate nonahydrate and react it with potassium hydrogen oxalate monohydrate and potassium hydroxide..
- Week 11Module 5: Coordination Compound Preparation and Ligand Changes
Unit 7: Preparation of a Coordination Compound (cont.) · 2 hours
Filter the hot solution and add ethanol to induce crystal growth.. Collect the product by suction filtration and wash with acetone.. Dry the crystals and calculate the yield..
- Week 12Module 6: Synthesis of Chloropentaamine Cobalt (III) Chloride
Unit 8: Colours Associated With Ligand Changes In Some Coordination Compounds Of Copper(II) · 3 hours
Study the introduction to ligand changes in coordination compounds of copper(II).. Perform Experiment 8 involving the identification of colors associated with ligand changes in copper(II) compounds.. Add ammonia and HCl to hexaaquacopper(II) solution and note the color changes..
- Week 13Module 6: Synthesis of Chloropentaamine Cobalt (III) Chloride
Unit 9: Preparation of Chloropentaamine Cobalt (III) Chloride, [Co(NH3)5Cl]Cl2 · 3 hours
Study the introduction to the synthesis of chloropentaamine cobalt(III) chloride.. Perform Experiment 9 involving the preparation of chloropentaaminecobalt(III)chloride.. React cobalt chloride hexahydrate with ammonium chloride, ammonia, and hydrogen peroxide.. Add hydrochloric acid and heat the mixture..
Preparing for the exam
- Review the laboratory safety regulations thoroughly before the practical exam.
- Practice writing ionic equations for precipitation and redox reactions.
- Create a table summarizing the different oxidation states and colors of vanadium, chromium, and manganese compounds.
- Work through the calculations for the analysis of iron tablets and double salts, paying attention to stoichiometry.
- Understand the principles of coordination compound formation and ligand exchange reactions.
- Review the experimental procedures for the synthesis of potassium tris-oxalatoferrate(III)trihydrate and chloropentaaminecobalt(III)chloride.
- Focus on understanding the reactions involved in each experiment and the reasons for the observed color changes.
- Practice answering the questions at the end of each experiment to test your understanding of the concepts.
- Pay attention to the role of each reagent in the experiments and the reaction conditions required for each reaction.
- Create concept maps linking the different experiments and the underlying chemical principles.
Questions students ask about this course
What is CHM291 about?
This course, Practical Inorganic Chemistry III, is designed to expose students to the major reactions of transition elements through hands-on practical sessions. The course consists of nine practical experiments, some of which are divided into multiple parts. Students will learn about precipitation reactions, transitional properties of d-block elements, and the chemistry of various elements like vanadium, chromium, manganese, iron, and copper. Laboratory safety regulations are emphasized to ensure a safe learning environment.
How many units does CHM291 have?
CHM291, Practical Manual Inorganic Chemistry III, has 1 unit across 1 module, over 46 pages of course material. You can read it one unit at a time.
How many credit units is CHM291?
CHM291 carries 2 credit units, at 200 level in Sciences.
Is CHM291 hard?
CHM291 is rated intermediate level, with basic mathematical content. It is mostly practical and problem solving work, and it has a practical component.
How long does CHM291 take to study?
About 45 hours of study, spread across its 1 units.
How is CHM291 assessed?
CHM291 is assessed by assignments, tutor marked assessments and final examination.
What do I need before starting CHM291?
CHM101 CHM102 CHM201
What can I do with CHM291?
Laboratory Technician, Chemical Analyst, Quality Control Chemist and Research Assistant.