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Hi everyone, i have a teacher who wants to use Copper cloride solution 0.1M & Sodium sulfide solution 0.1M.
My problem is i dont have any Sodium Sulfide.
Can someone suggest a subsitute?

Thanks Rell

any of these solutions will do


AgNO3(aq) + CaCl2(aq)
• BaCl2 + Na2SO4
• Na2CO3 + CaCl2
positive ion.
• Silver nitrate
• Barium nitrate
• Lead (II) nitrate
• Strontium nitrate

negative ion.
• Solutions of:
• Sodium carbonate
• Sodium nitrate
• Sodium iodide
• Sodium Phosphate
• Sodium hydroxide
• Sodium sulfate

Thanks Jazz
rell

HI All,

Great to see everyone on the ball with things, the networking is absolutely priceless for those questions and queries that many people have. Both new and old....

Cheers,

Robb.....

Should barium chloride form a precipitate with sodium hydroxide? The prac we have says it shouldn't but ours is and I just googled it and it says that Barium hydroxide is slightly insoluble.

What concentrations are you using, and in what proportion?

At 3.89 g/dL (20 °C), barrium hydroxide is reasonably soluable, but much less so than either sodium hydroxide (109%) or barium chloride (35.8%).
Ba(OH)2: 3.89 g/dL / 171.3425g/mol = 0.23 M.

You will not get a precipitate if you are mixing dilute solutions (~0.1M), but you may if mixing concentrated (~2.0M).

0.1M BaCl with 0.5M NaOH.