Given the data from the question,
A. The number of mole of water needed for the reaction is 1 mole
Bi. The number of mole of Câ‚‚Hâ‚‚ formed is 0.5 mole
Bii. The number of mole of Ca(OH)â‚‚ formed is 0.5 mole
How to determine the mole of CaCâ‚‚
- Mass of CaCâ‚‚ = 32 g
- Molar mass of CaC₂ = 40 + (12×2) = 64 g/mol
- Mole of CaCâ‚‚ =?
Mole = mass / molar mass
Mole of CaCâ‚‚ = 32 / 64
Mole of CaCâ‚‚ = 0.5 mole
A. How to determine the mole of water neede
Balanced equation
CaC₂ + 2H₂O —> C₂H₂ + Ca(OH)₂
From the balanced equation above,
1 mole of CaCâ‚‚ required 2 moles of Hâ‚‚O
Therefore,
0.5 mole of CaC₂ will require = 0.5 × 2 = 1 mole of H₂O
Thus, 1 mole of Hâ‚‚O is needed for the reaction.
Bi. How to determine the mole of Câ‚‚Hâ‚‚ produced
Balanced equation
CaC₂ + 2H₂O —> C₂H₂ + Ca(OH)₂
From the balanced equation above,
1 mole of CaCâ‚‚ reacted to produce 1 mole of Câ‚‚Hâ‚‚
Therefore,
0.5 mole of CaCâ‚‚ will also react to produce 0.5 mole of Câ‚‚Hâ‚‚
Thus, 0.5 mole of Câ‚‚Hâ‚‚ was obtained from the reaction
Bii. How to determine the mole of Ca(OH)â‚‚ produced
Balanced equation
CaC₂ + 2H₂O —> C₂H₂ + Ca(OH)₂
From the balanced equation above,
1 mole of CaCâ‚‚ reacted to produce 1 mole of Ca(OH)â‚‚
Therefore,
0.5 mole of CaCâ‚‚ will also react to produce 0.5 mole of Ca(OH)â‚‚
Thus, 0.5 mole of Ca(OH)â‚‚ was obtained from the reaction
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