Question

Calculate the number of particles in 16 g of KNO3

Answer 1

Answer:9.54*10²²

Explanation:Weight of KNO3 = 16g

Molecular mass of KNO3 =39+14+16*3

=39+14+48 =101

Number of moles = W÷M =16÷101 =0.16 mol

We know that number of moles = number of particles/ Avogadro number

So number of particles= number of moles * Avogadro number

= 0.16*6.022*10²³ = 9.54*10²² number of particles