I absolutley love stoichiometry! I think it's really easy and fun to do. Plus when I tell people I think Stoichiometry is easy I sound like a fancy smart chemist! ;) A lot of people think that just by hearing the name it'll be hard, but honestly it's pretty simple. So when we had the lesson about using Molarities in Stoich calculations I was pretty happy! The examples we did in class make sense to me. The only thing that trips me up is using liters/mL all the time. I just need some more practice with these types of problems. But what I love about stoich is that the steps to solve the problems are all the same. It hardly changes. It's the same basic flow.
Here are the steps to solve problems using molarities in stoich calculations:
#1 Write balanced equation
#2 Calculate moles of reactants
#3 Find limiting reactant
#4 Calculate moles of other reactant or products
#5 Convert to grams or other units if needed.
Not too shabby! ;)
Here's a little tip!!
If the problem gives you 4 bits of info (2 info for each chemical) then you are going to find the limiting reactant.
If the problem gives you 3 bits of info (2 about one chemical and one about the other) then you are just going to use plain stoich (not finding limiting reactant).
Helpful Links Below!
Molarity Problems and Examples
Molarity with Stoichiometry
Molarity with Stoichiometry involving Limiting Reactants
Review of Stoichiometry - using Molarity
Oh, I know Brianna! Stoich is my favorite thing about chemistry so far! I don't really know why I find it so comforting to do conversions rather than most math in Chem, but I somehow do! XD Thank you for that little extra tid-bit at the end, it really helped!
ReplyDeleteThank you for the helpful steps for solving stoich problems! I love stoich too because of how math based it is!
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