Question

discussion about experiment on preparation of an ammine-nickel complex

Answer 1

Hexamminemickel (11) chloricle Proces 11 4g of whyll & lome clist watce Z - To make a saturated t Beaker I al solunen of ammentum - I charice solution. Sauli N4 2) 5g of Nickel (11) Chloride eex hy grate were dissolved in 3.4 me clist watcs. istion the rinture for 15 mins. A Beaker 2 SSL will, solution 3) When Nickel (11) Chloricle then shu of ammonium dexlyarate dissolved Chloride soin added. Beaker I 2 saturarea NM4U soin. I Beake2 Níu, solution 4) Then lome of concentrated Ammonia solm were added. The solution turn Blue in colour and precipitare formed immediately. in addition to that the soin heated up The following Reaction take place Nich + 6 NH3 INICNH3) 42 Blue colour Green Colors This precipitation was why u rrot, increased by the addition of

3) the solution of was cooled in ire Buth for one hour to increase the amount of percipiture large amount of ppt was formed which was then filter of the residue in to Beaker was washed out a times with ime of Ammonia sol (coming ice cold solm (0°C In the end it was washed with turse amount of alwhol to speed up the cloying process after wash on the hot plate 7 Then at it was dried around 50°c 8) to measure the weight of percipitute (i.e Hexa amminenickel (11) Chloride). puter