Confused on how the solutions manual arrived to this answer?

Moderators: Chem_Mod, Chem_Admin

805132275
Posts: 47
Joined: Fri Sep 28, 2018 12:26 am

Confused on how the solutions manual arrived to this answer?

Postby 805132275 » Mon Oct 08, 2018 11:44 pm

On M.5, the question asks to determine how many moles of each product will be produced. What I did is perform a mole to mole ratio by multiplying 5mol of BrF3 by the 6 moles of ClO2F and dividing that by 2 mol BrF3 to obtain the moles of ClO2F left. I got 15 moles for ClO2F but the solutions manual said it's 12. I'm assuming they simply multiplied the 6 and 2, but I don't understand why?

Max Hayama 4K
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: Confused on how the solutions manual arrived to this answer?

Postby Max Hayama 4K » Tue Oct 09, 2018 12:21 am

I think you mistakenly used BrF3 as the limiting reactant, when ClO2 should have been used to determine how much product is produced. In other words, 5 mols of BrF3 will result in 2.5 reactions when 12 mols of ClO2 will result in 2 reactions. Therefore, we use the mols of ClO2 as our limiting reactant and divide 12 by the 6 mols required to begin the reaction, and multiply by the 6 mols of product formed. We end up with 12 mols of ClO2F formed.


Return to “Limiting Reactant Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest