Manganate Study guides, Class notes & Summaries

Q1. (a) (i)M1 (Compounds / molecules with) the same structural formula2 Penalise M1 if ‘same structure’ or ‘different structural / displayed formula’. M2 with atoms / bonds / groups arranged differently in space OR atoms / bonds / groups with different spatial arrangements / different orientation Ignore references to ‘same molecular formula’ or ‘same empirical formula’. Mark independently. (b)M1 Br2 OR bromine (water) OR bromine (in CCl4 / organic solvent)1 If M1, has no r...

This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compo...

This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compo...

This question is about ethanedioic acid (HOOCCOOH) and the ethanedioate ion (−OOCCOO−). . Ethanedioic acid reacts with propane-1,3-diol (HOCH2CH2CH2OH) to form a polyester. Draw the repeating unit of this polyester. [2 marks] . Explain why polyesters are biodegradable but polyalkenes are not biodegradable. [2 marks] . Sodium ethanedioate is used to find the concentration of solutions of potassium manganate(VII) by titration. ...

0 1 This question is about ethanedioic acid (HOOCCOOH) and the ethanedioate ion (−OOCCOO−). 0 1 . 1 Ethanedioic acid reacts with propane-1,3-diol (HOCH2CH2CH2OH) to form a polyester. Draw the repeating unit of this polyester. [2 marks] 0 1 . 2 Explain why polyesters are biodegradable but polyalkenes are not biodegradable. [2 marks] 0 1 . 3 Sodium ethanedioate is used to find the concentration of solutions of potassium ...

Answer all questions in this section. box This question is about rates of reaction. Potassium manganate(VII), KMnO4, reacts with sodium ethanedioate, Na2C2O4, in the presence of dilute sulfuric acid. 2 MnO –(aq) + 16 H+(aq) + 5 C O 2–(aq)  2 Mn2+(aq) + 8 H O(l) + 10 CO (g) The reaction mixture is purple at the start and goes colourless when all the MnO –(aq) ions have reacted. The rate of reaction can be measured as 1000 where t = the time taken for the mixture...

AQA A-LEVEL CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL CHEMISTRY A-level CHEMISTRY Paper 1 Inorganic and Physical Chemistry Tuesday 13 June 2017 Afternoon Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-point pen. • Fill in the ...

Compiled by a Year 11 chemistry student who received a Grade 8 in her recent IGCSE exams, this is a question and answer PDF where basic questions and more harder ones are discussed. Topics: -Moles -Balancing Equations -Covalent Substances -Covalent Bonding -Ionic Compounds -Ionic Bonding -Bonding -Masses in Reaction -Percentage Yield Formula -Water of Crystallisation -Finding Formulae using Experiments -Mass Numbers -Potassium Manganate (VII) Experiment -Moles and ...

Complete guide on benzene,methyl benzene and aryl halides. Properties and description of benzene rings. Structure of benzene derivatives and their naming. Combustion of benzene,free radical substitution and electrophilic substitution with conditions and mechanisms. Alkylation and acylation mechanism, conditions and products with diagrams. Side chain reactions with mechanisms(free radical substitution,oxidation with potassium manganate,halogenation, nitration and bromination). Aryl halides and it...

This summary sheet studies Chapter 23 of the A-Level Chemistry OCR A Textbook on Redox and Electrode Potentials. The following topics are covered on this revision sheet: Balancing Redox equations, Manganate Titration, Iodine/Thiosulfate Redox Titration, Electrode Potentials, Half Cells, Predictions of Standard Electrode Potentials, Measuring a Standard Electrode Potential, Calculating Standard Electrode Potential, Limitations, Storage + Fuel Cells (primary and secondary cells), and Hydrogen F...