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the mass of CuSCN precipitate

the mass of CuSCN precipitate is 1.379g, what is the mass of copper in the precipitate?
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2. asked by Help please!
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a watch glass and filter paper weighing 41.060g was used to collect the CuSCN precipitate in this experiment. After drying, the
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A solution contains an unknown mass of dissolved barium ions. When sodium sulfate is added to the solution, a white precipitate
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2. asked by Beth
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An excess of aqueous AgNO3 reacts with24.5 mL of 5 M K2CrO4(aq) to form a precipitate. What is the precipitate? Answer: Ag2CrO4
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2. asked by Mary
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A mixture contains only NaCl and Al2(SO4)3. A 1.76-g sample of the mixture is dissolved in water, and an excess of NaOH is
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2. asked by hope
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A mixture contains only NaCl and Al2(SO4)3. A 1.45-g sample of the mixture is dissolved in water and an excess of NaOH is added,
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2. asked by Melissa
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A mixture contains only NaCl and Al2(SO4)3. A 1.76-g sample of the mixture is dissolved in water, and an excess of NaOH is
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2. asked by hope
3. 1,117 views
A solution contains an unknown mass of dissolved silver ions. When potassium chloride is added to the solution, a white
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2. asked by Brittany
3. 2,008 views
A solution contains an unknown mass of dissolved barium ion. When sodium sulfate is added to the solution, a white precipitate
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2. asked by Nicole
3. 637 views
A mixture contains only NaCl and Fe(NO3)3. A .456 gram sample of the mixture is dissolved in water and an excess of NaOH is
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2. asked by kelly
3. 2,703 views