masteringchemistry.com/myct/itemView?assignment ProblemiD-92745745 Problem 9.64

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masteringchemistry.com/myct/itemView?assignment ProblemiD-92745745 Problem 9.64 « previous | 21 of 45 n Part C roblem 9.64 A950mL sample of 80%(mv) NaOH is diuted with water so that the final voue is 2000mL Express your answer using two significant figures. Calculate the final concentration of each of the following diluted solutions %(m/v) Submit My Answers Sive Up Part D AS0mL sample of 500%0 w) acetic acid (HC2H30) solution is added to water to give a final volume of 25 mL Express your answer using two significant figures. % (mv) Submit Incorrect: Try Again: 3 attempts remaining Co

Explanation / Answer

Part C:

According to law of dilution MV = M'V'

Where M = Molarity of stock = 8.0%(m/v)

V = Volume of the stock = 95.0 mL

M' = Molarity of dilute solution = ?

V' = Volume of the dilute solution = 200.0 mL

Plug the values we get , M' = MV /V' =3.8%(m/v)

Part D:

According to law of dilution MV = M'V'

Where M = Molarity of stock = 50.0%(m/v)

V = Volume of the stock = 5.0 mL

M' = Molarity of dilute solution = ?

V' = Volume of the dilute solution = 25 mL

Plug the values we get , M' = MV /V' = 10%(m/v)

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