please have a project due tommoroww!!! thanks 10 points
In qualitative analysis you need to know the ions/elements found in your substances1.First of all, solution B releases ammonia gas(c)which turns damp red litmus blue, has pungent, choking smell(B) contains nitrate ion-NO3(2-) BECAUSE Test for nitrate:warm with sodium hydroxide aluminium powder Result:ammonia gas produced The white powder probably contains lead(A) IS LEAD CARBONATE because it gives a colourless gas(E) HEAVIER than air which should be carbon dioxide The colourless solution(D) IS LEAD NITRATELead nitrate is used to test for iodide ions When mixed with an iodide containing solution it gives yellow ppt Solution D must contain either aluminium or zinc since both of these metals produce white ppt soluble in sodium hydroxide solution Assuming it is aluminium because of the powder, when aqueous ammonia is added it does not dissolve in it(insoluble in excess) E is CO2 F is AlOH A is PbCO3 G is NO3(2-) loses two electrons becomes NO3 Test for C (AMMONIA):PUT damp red litmus paper Result:the litmus turns blue
can of spray (paint) plastic bucket ceramic bowl and plates aluminum foil toothbrush anything really that hasn't been made from plants, animals, or wood.
I'm not sure I can get them all, but I might be able to provide enough to jumpstart your work (assuming you have a qualitative analysis textbook in front of you)I think D is lead nitrate, because lead nitrate and potassium iodine lead to lead iodide, a yellow precipitateG would be lead iodideLead Nitrate and sodium hydroxide forms Pb(N03)2Pb(OH)2 - you won't get Pb(OH)2 until the pH reaches 12I'm guessing C is HClI'm not as confident about that as I was for the previous assertion.
