1)Calculate the no.of particles in 64g of oxygen gas.2)calculate the mass of 0.5 moles of sodium atoms.3)Calculate the no.of particles in 112g of iron.
atomic mass of O=16u, Fe=56u, Na=23u)
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16gm=1mole then ,,1gm=1/16mole
64gm=1/16×64mole then
64gm=4mole
hence, 1mole=6.022×10 to power 23 particles
then 4mole=4×6.022×10^23
=24.088×10^23 particles in 64 gm of oxygen gas
then you both two by this method okk
64gm=1/16×64mole then
64gm=4mole
hence, 1mole=6.022×10 to power 23 particles
then 4mole=4×6.022×10^23
=24.088×10^23 particles in 64 gm of oxygen gas
then you both two by this method okk
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