Question

how many mols of HCl are required to fully react with 150 g of C to ( A H )2​ ?

Answer 1

The complete reaction between HCl and C2H2 is represented as

C2H2+2HCl=C2H4Cl2

It means 2 mol of HCl is required for 1mol of C2H2

1 mol of C2H2 is equivalent to 26.04 gram

Thus in 150 gram, total mol contain is 150/26.05 =5.758 mol

Means 2x5.758 =11.51 mol of HCl is required for complete reaction