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4
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What is the precipitate of aqueous copper (II) and polysulfides?
So if you heat up a piece of sodium engulfed in a large excess of sulfur, what you would get (from what I've read) is sodium polysulfide $\ce{NaS_n}$. But how large can $n$ get? If you left sodium ...
- 11
-1
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3
answers
2k
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An aqueous solution of NaCl has a mole fraction of 0.21. What is the mass of NaCl dissolved in 100.0 mL of solution? [closed]
Work
mole fraction of NaCl = 0.21/0.21+0.79
If there is 1 mol of total solution, there will be 0.21 mol NaCl and 0.79 mol H2O
0.21 mol NaCl = 12.27 g
0.79 mol H2O = 14.23 g
this would yield a ...
- 31
-1
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2
answers
7k
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KCl + CuCl2 in solution, is there a reaction?
I'm wondering if the reaction of $\ce{KCl + CuCl2}$ in solution (aq) will produce any products (have a net ionic equation/solid precipitate)?
Using the metal activity series, I see that potassium is ...
- 9
1
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2
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2k
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Should the volume of a solute be factored into the volume of a solvent when preparing a substance of a certain molarity?
Upon being asked to prepare a solution of a given molarity from a solution with high concentration I was confused whether or not I should factor in the volume taken from the high concentration ...
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