elizabeth067 elizabeth067
  • 03-11-2020
  • Mathematics
contestada

PLEASE HELP! I'LL GIVE BRAINLIEST!!!!!!!

PLEASE HELP ILL GIVE BRAINLIEST class=

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handelsinora
handelsinora handelsinora
  • 03-11-2020

Answer:

1.6x10^-18 gram

Step-by-step explanation:

(5.3 x 10⁻²³ gram/molecule) x (20,000 molecule)

= (5.3 x 10⁻²³ x 2 x 10⁴) gram

= (10.6 x 10⁻²³⁺⁴) gram

= (1.06 x 10⁻²³⁺⁵) gram

= 1.06 x 10⁻¹⁸ gram

We need to find the mass of 20,000 molecules of oxygen. It can be calculated using unitary method. Here, we can multiply 20,000 molecules  by the mass of one oxygen molecule.

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