Question

consider the reaction; 2HBr yeilds H2 + Br2, if the volume of the reactionwith the average rate of the reaction being .0017, what amount of Br2 moles was formed during the first 18 sec of the reaction

Answer 1

The reaction happening will be

2HBr(l) ---------- H2(g) + Br2(g)

Average rate of the reaction = 0.0017 M/s

Time = 18 seconds

Molarity of Br2 = 0.0017 M/s * 18 seconds = 0.0306M

The question doesn't provide the volume of the vessel, we need to multiply the molarity with the volume of vessel to find the number of moles of Br2

Amount of Br moles formed = Molarity of Br2 * Volume of solution (in L)

=> 0.0306 * V (in L)

=> 0.0306V