Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2 ) with aqueous hydrochloric acid according to the reaction 4 HCl (aq) + MnO2 (s) → 2H2O (l) + MnCl2 (aq) + Cl2 (g) How many grams of HCl react with 5.0 g of manganese dioxide?

NCERT Class XII
Chemistry - Main Course Book I

Chapter 1. Some Basic Conpepts of Chemistry

1

Answers

2015-05-30T19:17:58+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
HCl : molar mass = 36.4
Mn O2 : 54.9 + 32 = 86.9

4 moles of HCl = 145.6 grams reacts with 1 mole of Mn O2 ie., 86.9 grams..

So  mass of HCl that reacts with 5.0 grams of Manganese dioxide :
           5 * 145.6 / 86.9  = 8.377 grams of HCl.

1 5 1
click on thanks button above please