Question

a) Find out the number of particles i) 92g of sodium
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Answer 1

Answer:

24.092 × 10^23 particles.

Explanation:

Given,

mass of sodium = 92g

moles of sodium = given mass / molar mass

= 92 / 23 = 4 moles

By Avogadro's law, One mole of substance contains 6.023×10^23 atoms (particles) .

So, four moles of sodium contains 4×(6.023×10^23) particles.

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