Question

How many mols of CaC2 are needed to react completely with 60.2 mols of H2O? CaC2 + 2H2O → C2H2 + Ca(OH)2

Answer 1

30.1 moles of CaC₂ are needed.

Step-by-step explanation:

Given data:

Number of moles of CaC₂ needed = ?

Number of moles of H₂O = 60.2 mol

Solution:

Chemical equation;

CaC₂ + 2H₂O → C₂H₂ + Ca(OH)₂

Now we will compare the moles of CaC₂ and H₂O.

H₂O : CaC₂

2 : 1

60.2 : 1/2×60.2 = 30.1 mol

30.1 moles of CaC₂ are needed.