The active mass of 80g NaOh in 8 litre flask is? a) 1.0. B) 0.75 c) 0.5 d) 0.25

Question

Chemistry

Audrey Melton

8 June, 08:19

The active mass of 80g NaOh in 8 litre flask is? a) 1.0. B) 0.75 c) 0.5 d) 0.25

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Answers (2)

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Chasity Pena · Answer 1

Option d) 0.25

Explanation:

Molar Mass of NaOH = 23 + 16 + 1 = 40g/mol

Mass of NaOH from the question = 80g

Number of mole = Mass/Molar Mass

Number of mole of NaOH = 80/40 = 2moles

Volume = 8L

Active mass = mole / Volume

Active mass = 2moles/8L

Active mass = 0.25mol/L

Lillianna Hess · Answer 2

0.75 is Option B answer I am sure