September 2023 1 9 Report
- Los moles de 1x107 moléculas de ZnO (PM=81grs/mol) es: *
a.- 1,41x10-19
b.- 1.3x10-9
c.- 2x10-6
d.- 1,6x10-17





- Los moles de 4,5x1017 moléculas de O2 son *
a.- 5,3x10-6
b.- 0,4x10-8
c.- 7,47x10-7
d.- 8,72x10-11

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