what will happen if lead (II) is mixed in a tap water?
99179
Then you can kill a whole city for that. Don't mess up with lead. Lead is known to cause some neurological disorders and is one of the suspects for the fall of the Roman Empire. I am not really sure where I read it but lead has a sweet taste. I don't know where this question on lead leads to or what you really want to know with your question. If you use highly chlorinated tap water, chances are a precipitate of lead chloride can form if you look carefully.
715971
Gold would be deposited on the surface of the lead.\n\n3Pb + 2Au(NO3)3 ---> 3Pb(NO3)2 + 2Au
1008732
Ksp = [Pb+2]*[Cl-]^2/[PbCl2]\n\nby definition, [PbCl2] = 1\n\nAlso, based on the reaction:\n\nPbCl2 =====> Pb+2  +  2 Cl-\n\n[Cl-] = 2 [Pb+2]\n\nSubstitute this into the equation, and you get:\n\nKsp = [Pb+2] * [Cl-]^2 = [Pb+2]*(2[Pb+2])^2 = 4[Pb+2]^3\n\nNow, since you know that 0.99 grams of PbCl2 is dissolved in your liter of solution, you can calculate the molarity from:\n\n(0.99 g)/ (278.1 grams/mole) = 3.56x10^-3 moles = [Pb+2]\n\nKsp = 4*(3.56x10^-3)^3 = 1.8 x 10^-7\n\nThe text value for the Ksp of lead (II) chloride is 1.7 x 10^-5\n=================\nOkay, now for the second part of your question:\n\nIf you have 0.5M lead nitrate, which is soluble, you will have 0.5M Pb+2\n\nSo, let's plug 'n chug (we'll use the text value for Ksp to show the process):\n\nKsp =  1.7x10^-5 = [Pb+2]*[Cl-]^2\n\nbut, with the lead nitrate in solution, [Pb+2] = 0.5 moles/liter (the amount you'd get from the dissolution of lead chloride will be so small as to be negligible), so:\n\nKsp = 1.7x10^-5 = [0.5]*[Cl-]^2\n\n[Cl-]^2 = (1.7x10^-5)/(0.5) = 3.4x10^-5\n\nso [Cl-] = sqrt(3.4x10^-5) = 5.83 x 10^-3  and since [Cl-] = 2 [Pb+2], we halve that value to get:\n\nsolubility = 5.83x10^-3/2 = 2.92x10^-3 moles per liter\n\n(2.92x10^-3 moles/liter) * 278.1 grams/mole = 0.811 grams/liter\n\nIf you use the value of the Ksp calculated in the first half of the question, then the solubility of PbCl2 in your solution is 3x10^-4 moles/liter, or 0.083 grams/liter
313922
Yes there is.  If there is any lead in your pipes anywhere, it will leach into hot water to a much higher degree than it would in cold water. (Think of what happens to a tea bag in hot water as opposed to cold.)  Lead is very, very bad for your brain.  Also, if the pipes are plastic, plastic leaches more easily in heat as opposed to cold. (Manufacturers of plastic food wrap/containers tell you to NOT microwave food in plastic!) And, by the way, have you ever drained your water heater and seen what comes out of it?  Yuck!
153653
Water from the tap has several ions in it.  Some are added by people (like fluorine) and some arent (like sodium).  Also, water from the tap has several impurities.  \n\nWhen water is distilled, it is purified.  This water is deionized (some people call it DI water).  The water is free of impurities.  Without impurities, chemical "tests" can be run very efficiently and effectively with water.
31832
Any metal will melt on heating (unless burning up before), but for pure lead the melting point is fairly low with 600K (327°C, or 621°F). The melting point for lead alloys (with tin and/or antimon) is even lower.\n\nEven candle flames emit sufficient heat to melt down lead placed on a spoon in reasonable time.
780900
That is why I only trust on tap water from home with a system that would remove most or allchemicals and metals in the water. Others have bacteria and metals that make you become poisoned, damage your nerves or make you ill.
387399
Pb2+ + Cl- ---> PbCl2\n\nWe know that the lead in Pb(NO3)2 has to have a 2+ charge because a nitrate ion has a 1- charge, so two of them is a 2- charge.  The entire compound must have no charge, so a 2+ charge is assigned to the lead. \n\nBoth compounds Pb(NO3)2 and NaCl dissociate (they are both soluble), and because nitrate and Na+ ions are always soluble, they can be ignored in a net ionic equation.
700153
Measure the increase in lead content of different drinks, especially fruit juices, when poured into lead crystal.\n\nHow does the content increase the longer the juice stays in the glass?
297283
Not pure carbon in pure water, no.  Don't believe me, try sticking a pencil lead (graphite is pure carbon, not actually lead) into a glass of water and see if it dissolves.\n\nBut carbon will dissolve in some solutions.\n\nAs an aside, you think the guy above me might be trying too hard?  A more concise answer is usually preferable.
439640
Yes definitely! This is for the simple reason:-Tap water is likely to contain dissolved salts, and other impurities. But distilled water contains only water, and hence better.
793219
Lead acetate (lead(II) ethanoate) is used to detect the presence of hydrogen sulphide, H2S. A strip of paper is soaked in the solution, and held in the stream of the (smelly) gas. If the paper turns black (with lead sulphide, PbS) then hydrogen sulphide was present.\n\nPb2+ + H2S ---> PbS + 2H+\n\nThis used to be frequently done in UK schools, but no longer.
1177468
I would think because the acid reacts to the impurities in the water which could make it splash up..but i think distilled water has no impurities so it wouldnt do the same thing..but this is just a guess..i am not an authority on the subject by any means
1110280
Depending on quality of the distilling process. The conductivity should be very near 0. Pure water does not conduct electricity, it is the impurities such as iron that conduct.
675989
If when you mix the two together the solution turns clear, you have a solution.  If it makes a cloudy mixture, or if there is visible solid on the bottom, you have a heterogeneous mixture, or a non-uniform mixture, which is not a solution.
1087032
try Vogel's "Qualitative Inorganic Analysis", I'm pretty sure it has all the answers 4 u.\n\ndont care editions, but for 7th ed, ISBN is 0582218667\n\n****\nokey then, from Vogels\n\n1) when heated, lead nitrate decomposes to white solid lead oxide (PbO), brown gas (NO2) and oxygen gas. Brown gas decolorizes when contact with water. \n\n2) ammonia odur. ammonium compounds are all volatile towards heat and decomposes to ammonia and an acid but quickly recombine if the acid, in this case, hydrochloric acid, is a strong acid.\n\n3) anhydrate copper sulphate is white, hydrate copper sulphate is blue. I have no idea which one you actually heated. If it's anhydrate, no change; if hydrate, blue ---> white.\n\n4) blue precipitate forms initally, but resolve upon excess reagent, clear blue soln results due to the formation of copper complex [blue precipitate: Cu(OH)2*CuSO4, complex: [Cu(NH3)4]^2+]\n\n5) brown precipitates froms [Cu(OH)2], no change with excess reagents.\n\n6) metal-gray stipe (magnesium stipe) gains a redish brown color due to formation of copper metal. Possible decolorization of the soln (depends on how much magnesium u actually put in)\n\n7) volatile reaction, solid metal solves,ignitable gas is formed. (if phenolphthalein is added to water initally, soln becomes pink)
776682
Because tap water contains ions like F- and Cl- which will interupt the process.