How do you calculate the number of molecules?

How to calculate the number of molecules in 1 kg of aluminum?

  • How to calculate the number of molecules in 1 kg of aluminum? and the number of molecules in 1kg of brass? thanks :-)

  • Answer:

    no. of molecules/ions/atoms (particles) in 1mol of particles is always 6.022 x 10^-23 ,this is the Avogadro ` number as you probably know so first find the no. of moles of Al (mass/molar mass) then multiply be Avogadro number!

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