# Problem: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g) How much (grams) MnO2 (s) should be added to excess HCI(aq) to obtain 235 ml of Cl2(g) at 25°C and 715 Torr?

98% (79 ratings)
98% (79 ratings)
###### Problem Details

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation

MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g)

How much (grams) MnO2 (s) should be added to excess HCI(aq) to obtain 235 ml of Cl2(g) at 25°C and 715 Torr?

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gas Stoichiometry concept. If you need more Gas Stoichiometry practice, you can also practice Gas Stoichiometry practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofChlorine can be prepared in the laboratory by the reaction o...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 7 minutes and 34 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Mandelshtam's class at UCI.