Question

MCQ :-

Chemistry .......

Answer 1

1mole= 6.022×10^23 atom

weight of one atom is 1.50×10^-25 kg

so weight of 6.022×10^23 atom is 6.022×10^23×1.5×10^-25kg= 9.033×10^-2kg
change kg to gram

9.033×10^-2×1000=90.33gram

Answer 2

hey there !!!

we know that ,

atomic mass contains 6.022 ×10^23 atoms.

=) weight of one atom = 1.50 ×10^-25 kg

= 1.5×10^-25 × 10^3

=1.5×10^-22 g

◆weight of 6.022×10^23 atoms = atomic mass

so atomic mass = 6.022×10^23 ×1.5×10-22

=9.033 ×10 = 90.33

~ 90 g

so atomic mass = 90 g

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hope it will help u ^_^