What mass of MnCl_2 could be isolated by reduction of MnO_2 with 150.0*g of HCl(g)?

1 Answer
Jan 11, 2017

Approx. 126*g could be isolated.

Explanation:

MnO_2(s) + 4HCl(g) rarr MnCl_2(aq) + 2H_2O(l) + Cl_2(g)uarr

"Hydrogen chloride" is the limiting reagent.

"Moles of HCl" = (150.0*g)/(36.46*g*mol^-1)=4.11*mol.

Given the stoichiometry, 1.03*mol MnCl_2 are obtained by reduction of Mn(IV).

This constitutes a mass of 1.03*molxx125.84*g*mol^-1=??

At one stage this reaction was used for the manufacture of chlorine. What quantity of chlorine would be produced here?