how many molecules of NaOH in15g of NaOH solution
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Answer:
Grams => Moles => Molecules
Given: NaOH of 15g
=> Number of moles of NaOH = Given Mass / Molar Mass
Molar Mass of NaOH = 23 + 16 + 1 = 40g
=> Number of Moles = 15 / 40 = 0.375 moles
We know that,
1 moles : 6.02 × 10²³ molecules :: 0.375 moles : x
Product of means = Product of extremes
=> 1 × x = 0.375 × 6.02 × 10²³ molecules
=> x = 2.2575 × 10²³ molecules
This is the required answer.
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