calculate the weight in gramsof 0.9 gram atoms of zinc

6.022*10^23 atoms of zinc have weigt = 65.5g

1 atom of zn have weight= 65.5/6.022*10^23g

therefore, 0.9 atoms of zn have weight = 65.5*0.9/6.022*10^23 g

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Here gram atoms means moles .: We need to calculate the mass of 0.9 moles of zinc. Gram atomic mass of zinc = 65.5 g .: Mass of 0.9 moles of Zn = 0.9*65.5 = 58.95g
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