Acids & Salts (Triple) quiz Loading... 1. With universal indicator, what is the pH of a red solution?0-38-104-712-14Question 1 of 21 Loading... 2. Describe the method to prepare a pure dry sample of sodium chloride (soluble salt) 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) 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) 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 2 of 21 Loading... 3. In the flame test for copper (II) ions what colour is the result?YellowRedBlue-greenLilacQuestion 3 of 21 Loading... 4. Write a word equation for the reaction between sodium hydroxide and iron(II) sulfatesodium hydroxide + iron(II) sulfate → sodium hydroxide + iron (II) sulfatesodium hydroxide + iron(II) sulfate → iron (II) hydroxide + sodium sulfatesodium hydroxide + iron(II) sulfate → iron (III) hydroxide + sodium sulfitesodium hydroxide + iron (II) sulfate → iron (II) hydroxide + sodium sulfiteQuestion 4 of 21 Loading... 5. 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 speed up the reactionTo ensure all the acid has reacted so there is no acid leftTo boil the acidQuestion 5 of 21 Loading... 6. Is lead sulfate soluble?noslightlyyesQuestion 6 of 21 Loading... 7. What two observations can be made when a metal reacts with an acid?Metal floats. Metal disappearsMetal floats. Metal meltsBubbles. Metal disappears.Bubbles. Metal meltsQuestion 7 of 21 Loading... 8. In a flame test, why is hydrochloric acid used?To protect the wire from meltingTo clean the wire of any unwanted ionsTo dissolve insoluble saltsTo make the colour of the flame more obviousQuestion 8 of 21 Loading... 9. What is defined as a proton donor?An acidAn oreA baseAn alkaliQuestion 9 of 21 Loading... 10. Describe the test for oxygen gasBubble the gas through limewater and see if it goes cloudyUse a glowing splint and see if it relightsTurns moist litmus paper white (bleaches)Use a lit splint to see if the gas popsQuestion 10 of 21 Loading... 11. What method would be followed to prepare a sample of pure, dry lead (II) sulfate?Titration methodExcess solid methodCombustion methodPrecipitation methodQuestion 11 of 21 Loading... 12. An alkali is called a proton _________An alkali is a proton acceptorAn alkali is a proton solventAn alkali is a proton donorAn alkali is a proton sinkQuestion 12 of 21 Loading... 13. What is a base?A substance which can neutralise an acid, forming salt and water onlyA source of hydroxide ions, OH⁻A compound that reacts with an acid to form hydrogenAn unreactive form of an alkali that is used to store itQuestion 13 of 21 Loading... 14. If nitric acid (HNO₃) produces H⁺ ions, what is formula for the other ion?NO₃⁻ (nitrate ion)N⁻ (nitride ion)N³⁻ (nitride ion)O²⁻ (oxide ion)Question 14 of 21 Loading... 15. 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) Pour away the liquid 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 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) Filter using filter paper and funnel. 4) Wash with distilled water. 5) Dry by leaving in a warm place.Question 15 of 21 Loading... 16. Nitric acid and silver nitrate are added to a solution containing chloride ions. Describe the result.Blue precipitateWhite precipitateYellow precipitateCream precipitateQuestion 16 of 21 Loading... 17. Is iron (III) hydroxide acidic or basic?Basic (as metal hydroxides are basic)Acidic (as metal hydroxides are acidic)Depends on the conditionsNeutral (as metal hydroxides are neutral)Question 17 of 21 Loading... 18. What is the universal indicator colour of a weakly alkali solution?YellowGreenBlueRedQuestion 18 of 21 Loading... 19. What is an alkali?An alkali is a source of hydroxide ions, OH⁻An alkali is a compound that reacts with metalsAn alkali is a corrosive substanceAn alkali is a colourless solutionQuestion 19 of 21 Loading... 20. State the steps for calculating empirical formula1) Aᵣ/mass. 2) divide by the smallest. 3) Give the ratio has a whole number. 4) State final empirial formula1) mass/Aᵣ. 2) divide by the smallest. 3) Give the ratio has a whole number. 4) State final empirial formula1) mass/Aᵣ. 2) divide by the largest. 3) Give the ratio has a whole number. 4) State final empirial formula1) Aᵣ/mass. 2) divide by the largest. 3) Give the ratio has a whole number. 4) State final empirial formulaQuestion 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?Excess solid methodCombustion methodTitration methodPrecipitation 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! FacebookXRedditLinkedInTumblrPinterestVkEmail