Simple distillation - Study guides, Class notes & Summaries

IGCSE Chemistry Written Exam 2024. State the method used to obtain sand from a mixture of sand and water - CORRECT ANSWER filtration State the method used to obtain solid copper sulfate from aqueous copper sulfate - CORRECT ANSWER crystallisation State the method used to obtain red food dye from a mixture of food dyes - CORRECT ANSWER paper chromatography State the method used to obtain water from salt water - CORRECT ANSWER simple distillation Draw a diagram to show equipment u...

What is a mixture? - CORRECT ANSWER-Two or more elements not chemically bonded What is the difference between a compound and a mixture? - CORRECT ANSWER-Compounds have a fixed composition whereas mixtures do not. Mixtures are not chemically bonded but compounds are. Describe the process of filtration - CORRECT ANSWER-Pour the mixture onto the filter paper, the liquid simply passes through the filter paper into the flask. The insoluble solid cannot pass through and so it stays on the paper...

AQA GCSE Chemistry Paper 1 Questions And Answers Rated A+. What is an *atom*? - correct answer. smallest part of an element What is an *element*? - correct answer. a substance that contains only one type of atom What are *chemical symbols*? - correct answer. - the letter or pair of letters that represents an element. - first letter is always capitalized What are *compounds*? - correct answer. substances in which atoms of two or more elements, which are chemically...

pure substance - Ans .single element, compound or substance not mixed with another substance physical processes - Ans .mixtures can be separated by... simple distillation - Ans .evaporating water and condensing it in a separate container fractional distillation - Ans .evaporating liquids with different boiling points filtration - Ans .screening and sieving to remove solids chromatography - Ans .using a solvent to separate pigments so you can identify them crystallisation - Ans .ev...

What is the charge of a proton? - correct answer +1 What is the charge of a neutron? - correct answer 0 What is the charge of an electron? - correct answer -1 What is the relative mass of a proton? - correct answer 1 What is the relative mass of a neutron? - correct answer 1 What is the relative mass of an electron? - correct answer Very small How many types of atoms do elements contain? - correct answer Only one type What are compounds? - correct answer Substances containin...

Atom definition The smallest component of an element Compound Two or more elements, chemically joined in fixed proportions. They can only be separated by chemical means. Mixture Two or more elements/compounds which are not chemically combined. Ways to separate mixtures - Filtration - Evaporation - Crystallisation - Simple distillation - Fractional distillation - Paper chromatography The plum and pudding model Before electrons were discovered, people thought that atoms were indivi...

What is an *atom*? - Ans .smallest part of an element ▪ What is an *element*? - Ans .a substance that contains only one type of atom ▪ What are *chemical symbols*? - Ans .- the letter or pair of letters that represents an element. o first letter is always capitalized ▪ What are *compounds*? - Ans .substances in which atoms of two or more elements, which are chemically combined ▪ What is a *chemical formula*? - Ans .a combination of symbols that shows the ratio of elements in a...

UOP CHEM 121 LAB FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ The spot must be applied to the TLC plate above the level of development solvent. False In the extraction of capsaicin lab 2 solvents are used (9:1 hexane-ethyl acetate mixture) and (1:1 hexane-ethyl acetate mixture). Which solvent mixture will cause the spot to have a smaller Rf value? 9:1 hexane-ethyl acetate mixture Rf value can be calculated with what information? distance spot travels and distance solve...

Recapitalization a technique used to purify organic solid compounds with the goal to dissolve and subsequently crystallize a pure substance from the solution. What are the four characteristics of a good solvent? -Target must be soluble in high temp with impurities soluble at room temp or at high temps -Must be chemically inert (non-reactive) -Low boiling point, or highly volatile What are the 5 basic steps to Recrystallization -Choose suitable solvent -Dissolve the impure mixture in the...

Simple Distillation and Fractional Distillation