Answer to Question #345476 in General Chemistry for Han

Question

How many grams of C2H2 will be produced, if 7.00g of Ca(OH)2 are also produced in the following reaction? Show the solution.

Answer 1

CaC₂ + 2H₂O = Ca(OH)₂ + C₂H₂

molecular mass of Ca(OH)₂ = 74 g/mol

molecular mass of C₂H₂ = 26 g/mol.

According to the above reaction, when 74 g of Ca(OH)₂ is formed, 26 g of C₂H₂ is formed. When 7 g of Ca(OH)₂ is formed, we find how many g of C₂H₂ are formed:

74 g Ca(OH)₂ — 26 g C₂H₂

7 g Can(OH)₂ — X

X = 7 * 26 / 74 = 2,46 g

ANSWER:. 2,46 g C₂H₂