Lesson: Dilutions
Presentation
•
Chemistry
•
10th Grade
•
Easy
Lan Vu
Used 8+ times
FREE Resource
8 Slides • 5 Questions
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Dilution is the process of decreasing the concentration of a solute in a solution, usually simply by mixing with more solvent like adding more water to the solution.
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Use the Dilution Equation
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1) identified the known and unknown variables, M1, V1, M2, and V2.
2) Make sure M is in Molarity and V is the same units (mL or L).
3) Rearrange the dilution eqution to solve for the unknown.
4) subsitute in the known variables and solve.
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Multiple Choice
Which of the following is the Dilution Formula?
V1M1 = V2M2
M = m/V
V = mT
PV = nRT
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Multiple Choice
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
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Notice the M will cancle out.
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Multiple Choice
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250.0 mL?
15.9 M
0.636 M
0.642 M
1.59 M
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Notice the mL will cancle out.
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Multiple Choice
If I have 340.0 mL of a 0.500 M NaBr solution, what will the concentration be if I add 560.0 mL more water to it? (Remember to use the total new volume)
.188 M
3.78 M
.389 M
1.76 M
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Math Response
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid? Answer to 2 decimal places.
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