This preview shows pages 1–2. Sign up to view the full content.
Name: __________________________________________
Date: ____________
WKST #8: Molarity and Dilutions (40 points)
Period: ___________
Follow the procedure below to answer each of the long answer questions to receive full credit.
Write the formula – it’s alright to use abbreviations, just make sure they make sense!
Substitute the appropriate numbers
Solve the problem and include the appropriate units
Place a
BOX
around your answer so I can find it easily
1. If I have 340 mL of a 0.50 M sodium bromide solution, what will the concentration be if the entire
sample is diluted to a final volume of 750 mL?
2. If I dilute 250 mL of 0.10 M ammonium hydroxide solution so that the final concentration is 0.25 M,
what is the volume of the diluted solution?
3. If I leave 750 mL of 0.50 M magnesium chloride solution uncovered on a windowsill and 150 mL of
the solvent evaporates, what will the new concentration of the magnesium chloride solution be?
4. To what volume would I need to add water to the evaporated solution in problem 3 to get a solution
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '11
 DONAHUE
 Molarity

Click to edit the document details