Brian111111111 Brian111111111
  • 02-02-2018
  • Chemistry
contestada

Anyone know how to do this?

Anyone know how to do this class=

Respuesta :

BeccaK2002
BeccaK2002 BeccaK2002
  • 02-02-2018

yes I do

so u need to find the amount of grams total and the individual amount of grams.

so 40+40+52+16+16+16+16=196g  (I got the numbers from the periodic table)

K- 80g

Cr-52g

O-64g

since you are solving for oxygen, you would only use the oxygen part so...

64g/196g=32.9%

32.9% is the answer

hope this helps! if it doesn't, let me know in the comments! have a blessed day!


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