Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2 ) with aqueous hydrochloric acid according to the reaction; 

4HCl(aq.) + MnO2 (s) ----> 2H2O(l) + MnCl2(aq.) + Cl2(g) 

How many gram of HCI react with 5.0 g of manganese dioxide?

5 views

1 Answers

4HCl(aq.) + MnO(s) ----> 2H2O(l) + MnCl2(aq.) + Cl2(g) 

87 g MnO2, reacts will 4 x 36.5 g HCl

5 g MnO2 will react with 4 x 36.5 x 5/87 = 8.39 g HCl

 

5 views