Acids & Salts (Triple) quiz Loading... 1. What method would be followed to prepare a sample of pure, dry lead (II) sulfate?Excess solid methodCombustion methodTitration methodPrecipitation methodQuestion 1 of 21 Loading... 2. What is the universal indicator colour of a pH 0-3 solution?GreenPurpleRedYellowQuestion 2 of 21 Loading... 3. Describe the method to prepare a pure dry sample of sodium chloride (soluble salt) 1) Heat hydrochloric acid in a beaker. 2) Add an equal amount of sodium oxide and stir with glass rod. 3) Filter the mixture using filter paper and funnel. 4) Heat the filtered solution (filtrate) until a hot saturated solution forms. 5) Allow the solution to cool so that hydrated crystals form. 6) Remove the crystals by filtration and wash with distilled water. 7) Dry by leaving in a warm place.1) Heat hydrochloric acid in a beaker. 2) Add sodium oxide until excess and stir with glass rod. 3) Filter the mixture using filter paper and funnel. 4) Heat the filtered solution (filtrate) until a hot saturated solution forms. 5) Allow the solution to cool so that hydrated crystals form. 6) Remove the crystals by filtration and wash with distilled water. 7) Dry by leaving in a warm place.1) Pipette 25cm³ of sodium hydroxide into a conical flask. 2) Do not add indicator. 3) (Using titration values)Titrate the known volume hydrochloric acid into conical flask containing alkali. 4) Transfer to an evaporating basin. 5) Heat the solution until a hot saturated solution forms. 6) Allow the solution to cool so that hydrated crystals form. 7) Remove the crystals by filtration and wash with distilled water. 8) Dry by leaving in a warm place.1) Pipette 25cm³ of sodium hydroxide into a conical flask. 2) Add indicator. 3) (Using titration values)Titrate the known volume hydrochloric acid into conical flask containing alkali. 4) Transfer to an evaporating basin. 5) Heat the solution until a hot saturated solution forms. 6) Allow the solution to cool so that hydrated crystals form. 7) Remove the crystals by filtration and wash with distilled water. 8) Dry by leaving in a warm place.Question 3 of 21 Loading... 4. 7.485 g of a hydrated copper(II) sulphate CuSO₄.xH₂O was heated producing 4.785g of anhydrous copper(II) sulphate. What is the formula of the hydrated salt?CuSO₄.7H₂OCuSO₄.4H₂OCuSO₄.5H₂OCuSO₄.10H₂OQuestion 4 of 21 Loading... 5. Describe an experiment to prepare a pure, dry sample of an insoluble salt, starting from two soluble reactants1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Filter using filter paper and funnel 4) Wash with one of the original solutions. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Pour away the liquid 4) Wash with distilled water. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Filter using filter paper and funnel. 4) Wash with distilled water. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Pour away the liquid 4) Wash with one of the original solutions. 5) Dry by leaving in a warm place.Question 5 of 21 Loading... 6. An acid is called a proton _________An acid is a proton donorAn acid is a proton sinkAn acid is a proton acceptorAn acid is a proton solventQuestion 6 of 21 Loading... 7. If iron chloride has the formula FeCl₃, what is the formula of the iron ion?Fe⁺Fe²⁺Fe⁰Fe³⁺Question 7 of 21 Loading... 8. Is iron (III) hydroxide acidic or basic?Acidic (as metal hydroxides are acidic)Neutral (as metal hydroxides are neutral)Basic (as metal hydroxides are basic)Depends on the conditionsQuestion 8 of 21 Loading... 9. In a flame test, a yellow colour is seen. Give the formula of the cation which is present.Ca²⁺K⁺Na⁺Li⁺Question 9 of 21 Loading... 10. What is an acid?An acid is a compound that reacts with metalsAn acid is a green solutionAn acid is a source of hydrogen ions, H⁺An acid is a corrosive substanceQuestion 10 of 21 Loading... 11. In a flame test, why is hydrochloric acid used?To dissolve insoluble saltsTo clean the wire of any unwanted ionsTo protect the wire from meltingTo make the colour of the flame more obviousQuestion 11 of 21 Loading... 12. What is defined as a proton acceptor?An acidA baseAn alkaliAn oreQuestion 12 of 21 Loading... 13. In the test for sulfate ions, what result shows they are present?cream precipitatebubbles formlimewater goes cloudyA white precipitate is formedQuestion 13 of 21 Loading... 14. What is a base?A substance which can neutralise an acid, forming salt and water onlyA compound that reacts with an acid to form hydrogenA source of hydroxide ions, OH⁻An unreactive form of an alkali that is used to store itQuestion 14 of 21 Loading... 15. When NaOH is added to a sample, a brown precipitate forms. What cation was present in the sample?Iron (II), Fe²⁺Calcium (II), Ca²⁺Potassium (I), K⁺Iron (III), Fe³⁺Question 15 of 21 Loading... 16. sulfuric acid + copper oxide →sulfuric acid + copper oxide → copper sulfate + watersulfuric acid + copper oxide → copper sulfate + carbon dioxidesulfuric acid + copper oxide → copper sulfide + watersulfuric acid + copper oxide → copper sulfide + hydrogenQuestion 16 of 21 Loading... 17. What is the pH of a strong acid?6-84-612-140-3Question 17 of 21 Loading... 18. Describe the test for chlorine gasTurns damp red litmus paper blueRelights a glowing splintBurns with a squeaky popTurns moist litmus paper white (bleaches)Question 18 of 21 Loading... 19. When preparing hydrated copper(II) sulfate crystals starting from copper(II) oxide, why is the acid gently heated?To increase the concentration of the acidTo ensure all the acid has reacted so there is no acid leftTo boil the acidTo speed up the reactionQuestion 19 of 21 Loading... 20. Is ammonium chloride soluble?noslightlyyesQuestion 20 of 21 Loading... 21. A pure, dry sample of a soluble salt can be prepared starting with an insoluble reactant. What is this method called?Combustion methodPrecipitation methodExcess solid methodTitration methodQuestion 21 of 21 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T17:11:05+00:00Categories: Uncategorized|Tags: Quiz, Topic: Acids & Salts| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail
