Question

A)You have the following reagents: sodium carbonate, sodium hydroxide, sodium oxalate, and sodium sulfide. Which one...

A)You have the following reagents: sodium carbonate, sodium hydroxide, sodium oxalate, and sodium sulfide. Which one willprecipitate the most zinc? Explain your answer
B) what concentration of your chosen chemical formula from part a will precipitate zinc? Assume zinc is 0.1M
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Answer #1

Answer- 1..

sodiumsulphide most favorable to precipitated zn

Because remaining are not to react or have less equivalence

With zn.. zn have +2 valeny, sodium hydroxides need 2 mole .

While carbonate and oxalate are less favorable to react with it.but sulphide also have -2 valeny and react easy..so only one mole can possible to precipitated it.

2..if zn is 0.1M than sodium sulphide also have 0.1 M.

Because zn+2 and s-2 both have same valency to neutral to each other...

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