Answer to Question #157842 in Chemistry for help me

Question #157842

A solution of NaOH has a concentration of 4 g/dm3. What is the mass of NaOH contained in 250 cm¬3 of this solution?


1
Expert's answer
2021-01-25T04:30:34-0500

Solution:

C(NaOH) = 4 g/dm3 = 4 g/L

Vsolution = 250 cm3 = 250 mL = 0.25 L

Find the mass of NaOH:

m(NaOH) = C(NaOH) × Vsolution = 4 g/L × 0.25 L = 1 g

m(NaOH) = 1 g


Answer: The mass of NaOH is 1 gram.

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