Science, asked by ncncn, 1 year ago

how many molecules of NaOH in15g of NaOH solution

Answers

Answered by Steph0303
2

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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