posted by Court .
Chlorine gas can be produced in the laboratory by adding concentrated hydrochloric acid to manganese(IV) oxide in the following reaction..
MnO2(s)+ 4HCl(aq)-->MnCl2(aq)+ 2H2O(l)+ Cl2(g)
A. Calculate the mass of MnO2 needed to produce 25.0g of Cl2
B. What mass of MnCl2 is produced when 0.091 g of Cl2 is generated?