Problem: Chlorine gas reacts with fluorine gas to form chlorine trifluoride. Cl2 (g) + 3 F2 (g) → 2 ClF3 (g) A 1.65 L reaction vessel, initially at 298 K, contains chlorine gas at a partial pressure of 337 mmHg and fluorine gas at a partial pressure of 741 mmHg . What is the pressure of ClF3 in the reaction vessel after the reaction? Enter your answer numerically, in terms of mmHg.

FREE Expert Solution

We are being asked to determine the pressure of ClF3 in the reaction vessel after the reaction of chlorine gas with fluorine gas to form chlorine trifluoride

Cl2 (g) + 3 F2 (g)  2 ClF3 (g)


Recall the ideal gas law

PV =nRT


where 

P = pressure in atm

V = volume in L

T = temperature in K

n = moles in mol

R = 0.08206 L-atm/mol-K


We will do the following steps to solve this problem:

Step 1: Determine the initial moles of reactants

Step 2: Determine the moles of ClF3 produced

Step 3: Determine the partial pressure of ClF3 produced


98% (480 ratings)
View Complete Written Solution
Problem Details

Chlorine gas reacts with fluorine gas to form chlorine trifluoride. 

Cl2 (g) + 3 F2 (g) → 2 ClF3 (g) 

A 1.65 L reaction vessel, initially at 298 K, contains chlorine gas at a partial pressure of 337 mmHg and fluorine gas at a partial pressure of 741 mmHg . What is the pressure of ClF3 in the reaction vessel after the reaction? 

Enter your answer numerically, in terms of mmHg.

Frequently Asked Questions

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. You can view video lessons to learn Gas Stoichiometry. Or if you need more Gas Stoichiometry practice, you can also practice Gas Stoichiometry practice problems.