Answer to Question #296813 in General Chemistry for JDelg

Question

How many grams of FeCl₂ will be produced from 7.25 g of HCl in the following reaction?

FeS + 2HCl --> FeCl₂ + H₂S

Answer 1

Moles of HCl = mass/MM

= 7.25g/(36.458g/mol)

= 0.199mol

Mole ratio of HCl:FeCl2 is 2:1

Moles of FeCl2 = (1/2)x 0.199mol = 0.099mol

Mass of FCl2 = Moles x MM

= 0.099mol x (126.751g/mol)

= 12.6g