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Please explain the answer of the above ionic equilibrium question.how to solve these types of question?

Please explain the answer of the above ionic equilibrium question.how to solve these types of question?

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Grade:12th pass

1 Answers

Arun
25763 Points
one year ago
Mass of the Sodium Hydroxide = 0.15 g
Molar Mass of the Sodium Hydroxide = 40 g/mole.
[∵ 23 + 16 + 1 = 40]
 
∵ No. of moles = Mass/Molar Mass
∴ No. of moles = 0.16/40
⇒ No. of moles of Sodium Hydroxide = 0.004 moles.
 = 0.004× 10³ millimoles [ ∵ 1 mole = 10³ millimoles.]
 = 4 millimoles.
 
 
Hence, the number of millimoles in the 0.16 grams of the Sodium hydroxide is 4 millimoles.
 
Hope it helps

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