Solution Stoichiometry — Drills · Grade 11 Science
Chapter: Stoichiometry & YieldWhat these drills covers
By the end of Solution Stoichiometry you should be able to:
- I can convert solution volume to moles and apply a reaction ratio.
- I can distinguish dilution from reaction and identify excess reactant.
2 questions, numeric and written answer, each with a worked explanation.
Vocabulary used: equivalence, aliquot.
Problem 1
Find moles in 0.250 L of 0.400 M solution.
Hints
Write the relationship first; substitute with consistent units.
Answer and explanation
0.1 mol
.400×.250=.100.
Problem 2
Why can equal solution volumes require unequal reacting amounts?
Answer and explanation
Their molarities and reaction coefficients can differ.
Response criteria
- State a scientifically accurate conclusion.
- Show the calculation or mechanism that supports it.
- Include units, conditions, or limits where relevant.