Check-In Quiz 4
Exams are spaced roughly 1 month apart in this course. Check-In Quizzes were written to cover the material between each exam as a sort of road marker between major assessments. While these quizzes are not graded or collected, they can be used as mini-exams to test your self half way through a unit. Think of it as an informal way to check your understanding halc way through to the next exam.
Check-In Quiz 4 (Fall 2013) Download Check-In Quiz 4 (Fall 2013) + ANSWER KEY Download ANSWER KEY
Check-In Quiz 4 (Fall 2014) Download Check-In Quiz 4 (Fall 2014) + ANSWER KEY Download ANSWER KEY
- Solutions:
- Understand the difference between the solute, solvent, and solution
- Understand how different solutes affect the electrical conductivity of the solution
- Most ionic compounds are strong electrolytes which conduct electricity in solution
- Most covalent compounds are NON-electrolytices which do not significantly conduct electricity in solution
- Concentrations:
- Be able to calculate the concentration of a solute in units of:
- Molarity (moles/L)
- Mass Percent
- Parts per million (ppm)
- The equations for these calculations will be provided but you must know how to use them
- Be able to solve for the total quantity of the solute based on the concentration and volume of solution provided
- Be able to use the dilution equation (M1V1=M2V2) to understand how concentration changes and volume changes
- Solution Stoichiometry:
- Provided the concentration in molarity and volume in liters, find the moles of a reactant or product and use this as in an other stoichometry problem
- Based on the moles of one reactant, solve for the moles of another reactant, then use this quantity in combination with volume to find concentration