aaugust1 aaugust1

14-09-2020
Chemistry

contestada

what is the mass in grams of 1.9×1023 atoms of lead?

Respuesta :

linahamdan1980 linahamdan1980

16-09-2020

Answer:

Explanation:

# moles that exist in 1.9 X 10 23 =

= # of atoms/# of Avogadro 's num

= 1.9 X 10 23 / 6.02x10 23

= 0.266 mole of Pb

now we calculate the mass

mass of lead = # mol x m.wt

= 0.266 X 106.4

= 28.30 gram

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