Question

calculatr the no of particles in 50g of NaCl

Answer 1

Answer:

molecular mass of NaCl=23+35.5

=58.5g

given mass=50g

no of moles in 50g of NaCl=given mass ÷molar mass

=50÷58.5

0.85 moles

no of particles in 0.85 moles=no of moles ×avogadros number

no of particles=0.85×6.022×10^23

=5.1187×10^23 particles