Q2) What is the correct sequence of steps for the preparation of a pure sample ofcopper(II)sulfate crystals from copper(II)oxide and sulfuric acid?A dissolving → crystallisation → evaporation → filtrationB dissolving → evaporation → filtration → crystallisationC dissolving → filtration → crystallisation → evaporationD dissolving → filtration → evaporation → crystallization

Q10) Which of the following methods are suitable for preparing both zinc sulfate andcopper sulfate?i Reacting the metal oxide with warm dilute aqueous sulfuric acid.ii Reacting the metal with dilute aqueous sulfuric acid.iii Reacting the metal carbonate with dilute aqueous sulfuric acid.A i and ii onlyB i and iii onlyC ii and iii onlyD i only

A student wanted to prepare copper(II) sulfate crystals by reacting solid copper(II) oxide to a solution of hot sulfuric acid. An extract from the method section of the experimental handout is shown below: Add the copper(II) oxide in small amounts to the hot acid in the reaction flask and stir until it is …..1….. When the reaction has gone to completion the copper(II) oxide will no longer …..2….., …..3….. and …..4….. the solution to obtain the copper(II) sulfate crystals. 1 2 3 4 A in excess precipitate cool dissolve B in excess dissolve filter cool C reacting dissolve cool filter D reacting precipitate filter coo

When solid copper sulphate is mixed to form a hot saturated solution with water and a small amount of acid, it leads to the formation of crystals of the same compound (copper sulphate). Chemically, what is the purpose of this procedure?                                                                                                        1 pointa. To obtain a non-powdered form of the compoundb. To observe both, solid and liquid forms of the compoundc. Crystal form is easier to store and use than powdered copper sulphated. To get rid of impurities in the copper sulphate and obtain pure compound

The formula for crystals of hydrated copper(II) sulfate is CuS*O_{4} * 5H_{2}*O Hydrated copper(II) sulfate is made by reacting copper(II) oxide with dilute sulfuric acid,The overall equation is shown.CuO+H. S*O_{4} + 4H_{3}*O -> CuS*O_{4} * 5H_{3}*OThe crystals are made using the following steps:step 1 50c * m ^ 2 of 0.2mol / d * m ^ 2 dilute sulfuric acid is heated in a beaker. Powdered copper(II) oxide is added until the copper(II) oxide is in excess. Aqueous copper(II) sulfate is formed.step 2The excess copper(II) oxide is separated from the aqueous copper(II) sulfatestep 3The aqueous copper(11) sulfate is heated until a saturated solution is formed.step 4The saturated solution is allowed to cool and crystallise.The crystals are removed and dried.step 5Calculate the maximum mass of copper(II) sulfate crystals, CuS*O_{4} * 5H_{2}*O that can form using the following steps.Calculate the maximum mass of copper(II) sulfate crystals, CuS*O_{4} * 5H_{2}*O that can form usingthe following steps.. Calculate the number of moles of H_{2}*S*O_{4} in 50c * m ^ 3 of 0.2mol / d * m ^ 3 H_{2}*S*O_{4}molDeduce the number of moles of CuS*O_{4} * 5H_{2}*O that can form.mol

A displacement reaction is one method for obtaining copper metal from aqueouscopper(II) sulfate.Identify another method for obtaining copper metal from aqueous copper(II) sulfate....................................................................................................................................... [1][Total: 11]It takes place because iron is hghe than copper in the reactivity seres so it is able to displace copperfrom the reactionfe2+CUSO4=Feso4+cu