4.4 Molarity and Dilutions

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Molarity, Moles, and Volume
Molarity = moles solute / Liters solution M = mol / VL (M)(VL) = mol VL = mol / M

How would 500mL of 0.25M NaOH (MW = 40g/mol) be prepared from solid NaOH?

 

What volume of 5M NH3 contains 0.10 moles of NH3?

Dilutions

M1V1 = M2V2     or     C1V1 = C2V2

 

If 50.0mL of 3.0M HCl is diluted to 300.0mL, what is the final concentration?

 

 

 

To what final volume must 20.0mL of 0.40M NaCl be diluted to result in a 0.080M solution?