How Many Grams of Co Are Needed to React With Fe2o3 to Produce 209.7 G Fe
Home >7440-50-8>Q&A> How many grams of silver crystals will be produced from the reaction of 63.546 grams of copper with excess silver chloride: 1 Cu (s) + 2 AgCl (aq) → 2 Ag (s) + 1 CuCl2 (aq)?
How many grams of silver crystals will be produced from the reaction of 63.546 grams of copper with excess silver chloride: 1 Cu (s) + 2 AgCl (aq) → 2 Ag (s) + 1 CuCl2 (aq)?
Answer Follow +1
Waite Answered Dec 06 2021
From the balanced equation, it can be seen that one mole of copper produces 2 moles of metallic silver.
Very helpfully, one mole of copper has a molar mass of 63.546g, so we are using precisely one mole of copper, and so expect to produce 2 moles of silver.
Silver has a molar mass of 107.868g, so 2 moles will weigh 215.736g.
There is no way that you would obtain such a precise amount of silver crystals, with 6 significant figure accuracy. All chemicals/materials used, the Cu, the AgCl, and the water, would have to be to at least this level of purity, as well as having ultra-clean glassware.
3 significant figure accuracy, or at most 4, would be more appropriate, so an answer of 216g, or 215.7 is much more indicative of experimental accuracy.
Maggie Answered Dec 06 2021
Mass of copper = 63.546g
Molar mass of copper = 63.546g/mol
Moles of copper = 63.546g/63.546g/mol = 1 mol
Moles of copper is 1 mol.
Cu (s) + 2AgCl (aq) → 2Ag (s) + CuCl2 (aq)
The mole ratio of CU to Ag is 1 : 2
1 mole of CU = 2 mole of AgCl.
Moles of Ag= 2 mol
Molar mass of Ag = 108g/mol
Mass = moles X molar mass
Mass of Ag = 2 mol x 108g/mol = 216g
Mass of Ag produced is 216g
Daley Answered Dec 06 2021
In such type problem we consider stoichiometry coefficient as a mole .
So we can say , 1 mol copper and 2mol AgCl react with form form 2 mol Ag crystal and 1 mol CuCl2 .
According to given mass moles of Cu=
given mass/atomic mass =63.546/63.5
=1 mol ( approax)
So ,mass of silver crystal= moles of silver ×atomic mass of silver atom
2× 107.87=215.74
Natalie Answered Dec 06 2021
It looks like people have the stoichiometry correct. But few of us will live long enough to see the reaction go to completion. AgCl is only soluble to about 10^-5 Molar. And when it gets reduced, the metal will plate out on the copper and passivate it so that no further reaction can occur.
Odette Answered Dec 06 2021
The equation looks good. It is balanced. You may proceed with the hypothetical stoichiometry calculations. Bye the way! You may ignore the coefficient 1. But remember, AgCl(s) is sparingly soluble.
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Encyclopedia
| Appearance | Raddish powder |
| Density | 8.92 |
| Melting Point | 1083℃ |
| Boiling Point | 2595℃ |
| Vapour | 0 mm Hg (approx) (NIOSH, 2016) |
| Flash Point | -23?°C |
| Solubility | insoluble |
| Color/Form | Rust-brownish |
| Stability | Stable. Incompatible with strong acids, active halogen compounds, chlorine, fluorine, iodine, bromine, ammonia. May react explosively with strong oxidizing agents. |
| HS Code | 7402000090 |
| Storage temp | 2-8°C |
| Appearance | beads |
| Density | 5.56 |
| Melting Point | 455℃ |
| Boiling Point | 1550℃ |
| Vapour | 1 mm Hg ( 912 °C) |
| Refractive Index | 2.071 |
| Flash Point | °C |
| Solubility | 0.00188g/l |
| Color/Form | Yellow |
| Stability | Stable, but discolours in light. |
| HS Code | 2843 29 00 |
| Storage temp | Keep away from sources of ignition. Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
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How Many Grams of Co Are Needed to React With Fe2o3 to Produce 209.7 G Fe
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