In lab, I mixed H2SO4 and Na2S and got a white precipitate as well as H2S gas (rotten egg smell). I am now trying to describe this with a net ionic equation - I know one product, but what's the white precipitate? And is there a redox reaction going on as well?
2007-04-12 19:20:38 · 7 answers · asked by Lily H 1 in Science & Mathematics ➔ Chemistry
The white precipitate is Sodium Sulfate Na2SO4 and , as you mentioned, you also get H2S gas.
H2SO4 + Na2S >>>>> H2S + Na2SO4
You can break down the ions from both starting compounds to give you a good view of what's going on with the ionic balance.
2 H+ SO4 2- (sulfate is dianionic -2)
2 Na+ S 2- (sulfide is also dianionic -2)
2007-04-12 19:29:49 · answer #1 · answered by WhitEC 3 · 0⤊ 0⤋
H2so4 Na2s
2016-12-14 13:21:33 · answer #2 · answered by mcginnes 4 · 0⤊ 0⤋
By mixing sulphururic acid H2SO4 with sodium sulphide, Na2S you will get the following;
H2SO4 + 2 - Na2S = Na2SO4 + H2S
You obtained two molecules of sulphydric acid (also called sulphurous anhydride) and the precipitate you obtained is sodium sulphate.
Careful: Inhalinh sulphure anhydride can give you Hemoglobin saturation with -SH ion, and thus, produce an intoxication ofthe room is not well ventilated....
2007-04-12 19:32:39 · answer #3 · answered by Sehr_Klug 50 6 · 0⤊ 0⤋
H2SO4+Na2S=H2S+Na2So4
the Na2So4 is the white precipitate
2007-04-12 19:27:57 · answer #4 · answered by Eslam 1 · 0⤊ 0⤋
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I'm not sure what the reactants are supposed to be...but I'll take a stab at it. Also, I can't seem to see anything past "BaC..", so I won't do that one. I assume you mean take all the compounds in the title and react them with KClO3 and NaNO3...and I'm going to assume all states are aqueous. AgNO3 + NaNO3 -> No reaction AgNO3 + KClO3 -> No reaction (AgClO3 is soluble in water) Na2S + NaNO3 -> No reaction Na2S + KClO3 -> No reaction (K2S is soluble in water) H2SO4 + NaNO3 -> No reaction (Na2SO4 is soluble in water) H2SO4 + KClO3 -> No reaction (KSO4 is soluble in water) KI + NaNO3 -> No reaction KI + KClO3 -> No reaction Na2SO3 + NaNO3 -> No reaction Na2SO3 + KClO3 -> No reaction All these do not react because all sodium, potassium, and nitrate compounds are soluble in water. The only reaction you'd get from any of these is if calcium chlorate is produced because only calcium chlorate is insoluble in water. Also, most of these are the same compounds. Sorry, I'm not sure if this is what you mean.
2016-04-04 21:14:12 · answer #5 · answered by ? 4 · 0⤊ 0⤋
= 2 NaSO2 +2 H2 + 2 O2,
dont know charges mabey hydrogen peroxide
2007-04-12 19:24:14 · answer #6 · answered by Me + Me = BANG! 2 · 0⤊ 0⤋
Yes, the precipitate is Sulphur.
2007-04-12 19:57:37 · answer #7 · answered by ag_iitkgp 7 · 0⤊ 0⤋